Operating channels fcc

4 Channels 2.4G Wireless USB Video Receiver DVR for PC & Laptop CCTV Colour Recorder Key Features: 2.4G Wireless Pinhole Camera Easy to Install or Hide Built-in Microphone For Audio Monitoring & Lithium Battery Lasts For 1.5-2.5 Hours USB Wireless Receiver to Connect to Your PC or Laptop, Easy to View and Record On HDD Specification (Camera): High Quality 2.4GHZ wireless high quality color CMOS camera for clear images 4 channel operation allows multiple (1-4) camera systems The camera is made by pinhole lens Depends on various condition,  Up to 40 meters outdoor range and up to 15 meters indoor range  Metal housing with adjustable focus lens Easy to install on wall or ceiling Frequency ISM 2,400 - 2,483MHz Imaging Sensor 1/3 inch OMNIVISION Color CMOS Horizontal Resolution 380TV Line CMOS Pixels PAL: 628 x 582; NTSC: 510 x 492 Viewing Angle: 62 degrees Minimum Illumination: 1. 0Lux / F1.5 Transmission Power: 10mW Consumption Current: 8mA Modulation Mode: FM Bandwidth: 18M Operating Range: 10m~60m Power Supply: DC 8V or Built-in Lithium battery Operating Temperature: -10 ~ +40 celsius degree Operating Humidity: 85%RH Size (LxWxH): 7.2cm x 2.2cm x 6.5cm Net Weight: 72g Specification (Receiver): Wireless USB DVR. 4-channel 2.4GHz wireless video/audio. Capture images 30 frames per second. Record file format AVI and play with Windows Media Player. USB 2.0 interface,transmission rate up to 480Mpit/s,48times. Fluency video display,720*576 image up to 30 frames/s. Moving image display upto 1440*1152 Sharp and nature image with true color. Advanced digital video control function Receiving Frequency: channel 1: 2.414GHZ channel 2: 2.432GHZ channel 3: 2.450GHZ channel 4: 2.468GHZ System Requirement:  Window XP, VISTA32, WINDOWS 7 1.7GHz CPU or better 128M memory or better Microsoft DirectX 9.0C USB2.0 Interface Audio Card / True Color VGA Card  Package Includes: 1 x USB Wireless Receiver 1 x AV Cable 1 x CD ROM(User Manual)        

This item is sold brand new. It is ordered on demand from our supplier and is usually dispatched in 10 to 15 working days. We urge you to please read shipping details before placing your order. --------------------------------------- *Main features 1) Standard H.264 video compression format 2) 16 bit true-color semi-transparent graphical menu interface menu options tip 3) A variety of recording modes: manual timing movement and alarm recording 4) Single playback 5) A variety of backup (U disk mobile hard disk network) 6) One USB2.0 for data backup one USB1.1 for the mouse operation 7) Multi-functional operation recording playback monitor backup and network transmission can be realized at the same time 8) Dual stream technology 9) Support network to implement multi-screen real-time browsing parameter setting copy or playback 10) Support phone monitoring 11) Support event classification and precise time search and playback 12) Defaulted parameter value fast recovery 13) Flexible USB interface for mouse *Technical parameters 1) Video standard: PAL/NTSE selectable 2) Video compression format: main profile H.264 3) Video input/output: BNC 8-channel input/2-channel output 4) Support VGA output 5) Alarm type: motion detection video loss disk full disk error 6) Display: 1/4/8-channel switchable 7) Display resolution: PAL: D1 (704 x 576) NTSC: D1 (704 x 480) 8) Display frame rate: single-channel PAL: 25fps NTSC: 30fps 9) Playback resolution: PAL: CIF (352 x 288) NTSC: CIF (352 x 240) 10) Recording total frame rate: PAL: 200fps@CIF NTSC: 240fps@CIF 11) Recording mode: start automatic continuous timing video motion detection 12) Video packing time: 15/30/45/60 minutes adjustable 13) Hard disk: support one SATA hard disk drive (maximum capacity is 1T) 14) Network protocol: support DHCP UDP TCP/IP DNS DDNS PPPOE and other protocols 15) Network functionality: support IE browsing real-time network monitor and network DVR parameter setting 16) USB 1.0 interface: support mouse operation USB2.0 interface: support mobile hard disk and USB disk backup and upgrade 17) Playback mode: normal playback fast forward playback fast backward playback manual single-frame slow motion 18) Network interface: one RJ45 10M/100M self-adaptive Ethernet port 19) PTZ control: built-in RS-485 interface support Pelco-D and Pelco-P protocol 20) Backup function: support USB disk backup movable hard disk backup USB writer backup and network backup 21) Power adapter: DC 12V/3A 22) Power consumption: 15-20W (excluding hard disk) 23) Operating temperature: 0-50 Operating humidity: 10%-90% 24) Dimensions: 354 x 230 x 45mm 25) Support language: English Russian Spanish Portuguese Polish French Greek Turkish --------------------------------------- See what else we're selling

Special frequency which is exclusive worldwide!>380 TVL of horizontal definition.> 4 PIP with 4 channels for watch (with USB DVR).>Camera with 12 pcs of φ5 LED infrared lamps and 7m night vision distance.>Camera designed with waterproof.>Camera can work with wire & wireless.>100m transmission distance without block.>Audio monitoring with microphone in camera Installs in just minutes. Send e-mail attachments with image. Save images on hard drive. Sound alarm. Video signal filter, for filtrate active and invalid channels. Signal lost alarm. Motion detection. Adjust sensitivity. Automatically lock, while not operating. Schedule monitoring sessions, for timer snap. Record video/audio (with USB 2.0 audio interface), snap shot. Automatic space management, stop recorder or capture still automatically on disk full. Supports 4 channel video input on computer for PIP (ALLOWS YOU TO VIEW UP TO 4 CHANNELS AT ONE TIME). Supports on screen display. Displays date and time or channel description on video. Supports manual open/close invalid channel or add delete channel description. Supports log in and log out, by user name and password. Supports running background stealthy. Supports video playback. System Contains: 1 x Sleek Professional Gray Receiver. 4 x Weatherproof Wireless Cameras. 1 x Power Adapter for Receiver. 4 x Power Adapters for Cameras. 4 x Antennas for Receiver (installed on receiver). 5 x Audio/Video Cables. 1 x Instruction Manual for Wireless Camera System. 1 x 4 channel USB 2.0 Video Adapter with Audio. 1 x USB Cable. 1 x Software CD (Driver and MultiViewer Application). 1 x Printable User Manual for MultiViewer Application. 1 x Quick Install Guide for USB 2.0 Adapter.

GREAT COMPATIBILITY: Compatible with Nikon D7100, D7000, D5100, D5000, D3200, D3100, D800, D700, D600, D90 and Other Nikon DSLR Cameras MULTIFUNCTIONAL REMOTE TRIGGER: This 3-in-1 trigger set can be used as the controller of synchronous trigger studio strobe flash, such as VISION4, VL-300 PLUS, VE-300/400 PLUS, VC-400/600HS flash; It can control on-camera flash; Also can be used as camera shutter cable 2.4G WIRELESS TRIGGER: 16 channels give you ability to avoid interference from other users; Flash Sync Speed up to 1/200 seconds; Operating distance: 25 meters OPERATION: Half press "Triggering button", camera automatically focus; Fully press "Triggering button", camera start shooting mode NECESSARY FOR SHOOTING EFFECT: Especially necessary and favorable to eliminate vibrations caused by physically pressing the shutter release to get pictures with higher quality

SELECTED OPTION: COLOR: WHITE CLICK HERE for more options in this item. Features:   1. Ethernet TCP/IP RJ45 Port 2. Onbaord WEB server allows accessing and controlling the relay via WEB 3. 8-Channel 250V/AC 10A Relay control individually 4. Thicker tinning for relay's wiring 5. 8 external control outputs and active low level can control switch or sensor, etc. 6. Wide operating voltage range: 7-24V DC power supply 7. Provide protocol for reengineering: When connected to router, it allows access control via Android, Mac, Tablet, Windows system from anywhere in the world with network 8. Supports status return, can display current status of the relays 9. IP Port can be modified 10. With Reset function, short press to reset, long press to restore factory setting. 11. Supports 485 networking. 12. Internal circuit protection: with optocoupler to prevent from external voltage surge   Package includes:   1 x 8Channels Relay Integrated remote Controller Board 1 x Black / White case for protection (Optional) SKU972500

DJI MAVIC PRO PLATINUM FLY MORE COMBO With enhanced endurance and quieter flight, the Mavic Pro Platinum is DJI's best portable drone yet. The Mavic Pro Platinum features a sleek design and compact body that is both powerful and alluring. A new and improved 30-minute flight time coupled with 60% noise power reduction makes the Mavic Pro Platinum DJIs best portable drone yet. Enhanced Endurance, Quieter Flight Aircraft noise has been reduced by up to 4dB* (60% noise power) and extended flight time to 30 minutes with new FOC sinusoidal driver ESCs and 8331 propellers for a quieter, more enjoyable flight experience.   Noise Reduction Noise Comparison Current Wave Comparison Mavic Pro Mavic Pro Platinum With a brand-new aerodynamic design, the 8331 propellers give the Mavic Pro Platinum an impressive noise control performance, and the new FOC ESC drivers offer sinusoidal current for increased stability.   Specs AIRCRAFT Folded H83mm x W83mm x L198mm Diagonal Size (Propellers Excluded) 335 mm Weight (Battery & Propellers Included) 1.62 lbs (734 g) (exclude gimbal cover) 1.64 lbs (743 g) (include gimbal cover) Max Ascent Speed 16.4 ft/s (5 m/s) in Sport mode Max Descent Speed 9.8 ft/s (3 m/s) Max Speed 40 mph (65 kph) in Sport mode without wind Max Service Ceiling Above Sea Level 16404 feet (5000 m) Max Flight Time 30 minutes (no wind at a consistent 15.5 mph (25 kph)) Max Hovering Time 27 minutes (no wind) ESC(Electronic Speed Controller) FOC Max Total Travel Distance (One Full Battery, No Wind) 9.3 mi (15 km, no wind) Operating Temperature Range 32 to 104 F (0 to 40 C) Satellite Positioning Systems GPS / GLONASS Hover Accuracy Range Vertical: +/- 0.1 m (when Vision Positioning is active) or +/-0.5 m Horizontal: +/- 0.3 m (when Vision Positioning is active) or +/-1.5 m Operating Frequency FCC: 2.4-2.4835GHz; 5.150-5.250 GHz; 5.725-5.850 GHz CE: 2.4-2.4835GHz; 5.725-5.850 GHz SRRC 2.4-2.4835 GHz;5.725-5.850 GHz Transmitter Power (EIRP) 2.4GHz FCC: 5.2 GHz FCC: 5.8 GHz FCC: REMOTE CONTROLLER Operating Frequency 2.4 GHz to 2.483 GHz Max Transmission Distance FCC Compliant: 4.3 mi (7 km); CE Compliant: 2.5 mi (4 km) SRRC Compliant: 2.5mi (4 km) MIC Compliant: 2.5 mi (4 km) (Unobstructed, free of interference) Operating Temperature Range 32 to 104 F (0 to 40 C) Battery 2970mAh Transmitter Power (EIRP) FCC CE SRRC: MIC: Operating Current/Voltage 950mA @ 3.7V Supported Mobile Device Size Thickness Supported:6.5-8.5mm Max length: 160mm Supported USB port types: Lightning, Micro USB(Type-B),USB(Type-C) GIMBAL Controllable Range Pitch: -90 to +30 Roll: 0 or 90 (Horizontally and vertically) Stabilization 3-axis (pitch, roll, yaw) VISION SYSTEM Vision System Forward Vision System Downward Vision System Obstacle Sensory Range Precision measurement range: 2 ft (0.7 m) to 49 ft (15 m) Detectable range: 49 ft (15 m) to 98 ft (30 m) Operating Environment Surface with clear pattern a

DJI MAVIC PRO FLY MORE COMBO The DJI Mavic Pro is a small yet powerful drone that turns the sky into your creative canvas easily and without worry, helping you make every moment an aerial moment   OVERVIEW Its compact size hides a high degree of complexity that makes it one of DJIs most sophisticated flying cameras ever. 24 high-performance computing cores, an all-new transmission system with a 4.3mi (7km) range, 5 vision sensors, and a 4K camera stabilized by a 3-axis mechanical gimbal, are at your command with just a push of your thumb or a tap of your finger.   Core Specs 27 MINS Flight Time 7 KM Control Range 3-axis Gimbal 4K Video Resolution 65 KM/H Speed 12 MP Camera Resolution   Aircraft Folded H83mm x W83mm x L198mm Diagonal Size (Propellers Excluded) 335 mm Weight (Battery & Propellers Included) 1.62 lbs (734 g) (exclude gimbal cover) 1.64 lbs (743 g) (include gimbal cover) Max Ascent Speed 16.4 ft/s (5 m/s) in Sport mode Max Descent Speed 9.8 ft/s (3 m/s) Max Speed 40 mph (65 kph) in Sport mode without wind Max Service Ceiling Above Sea Level 16404 feet (5000 m) Max Flight Time 27 minutes (no wind at a consistent 15.5 mph (25 kph)) Max Hovering Time 24 minutes (no wind) Overall Flight Time 21 minutes (In normal flight, 15% remaining battery level) Max Total Travel Distance (One Full Battery, No Wind) 8 mi (13 km, no wind) Operating Temperature Range 32 to 104 F (0 to 40 C) Satellite Positioning Systems GPS / GLONASS Hover Accuracy Range Vertical: +/- 0.1 m (when Vision Positioning is active) or +/-0.5 m Horizontal: +/- 0.3 m (when Vision Positioning is active) or +/-1.5 m Operating Frequency FCC: 2.4-2.4835GHz; 5.150-5.250 GHz; 5.725-5.850 GHz CE: 2.4-2.4835GHz; 5.725-5.850 GHz SRRC 2.4-2.4835 GHz;5.725-5.850 GHz Transmitter Power (EIRP) 2.4GHz FCC: 5.2 GHz FCC: 5.8 GHz FCC: Camera Sensor 1/2.3 (CMOS), Effective pixels:12.35 M (Total pixels:12.71M) Lens FOV 78.8 26 mm (35 mm format equivalent) f/2.2 Distortion ISO Range video: 100-3200 photo: 100-1600 Electronic Shutter Speed 8s -1/8000 s Image Size 40003000 Still Photography Modes Single shot Burst shooting: 3/5/7 frames Auto Exposure Bracketing (AEB): 3/5 bracketed frames at 0.7 EV Bias Interval

Samson 's Concert 99 Earset combines 80 channels of high-definition audio and extreme reliability into a rugged all-metal, rack-mountable chassis with a stage-ready backlit display. With simple 1-touch setup, convenient monitoring, a 300' UHF operating range and impressive transmitter battery life, this frequency-agile system offers unprecedented value to presenters, educators, house of worship speakers, fitness instructors and others in search of reliable wireless freedom. In both single and multi-system arrangements, the CR99 Wireless Receiver offers 80 total operating channels, selecting the best frequency option for your area. Quick to setup, the CR99's Group scan helps avoid conflicting frequencies, while its IR sync function allows users to wirelessly match the transmitter to the receiver’s operating frequency.   The CR99 receiver features a bright, backlit LCD for monitoring on dark stages, even at long distances. The LCD also shows the exact battery life of your transmitter, along with the channel number and its corresponding UHF frequency   Audio reaches the CR99 Wireless Receiver receiver via the CB99 Beltpack Transmitter, which features  Samson 's SE10 Earset Microphone with Miniature Condenser Capsule, moisture-resistant design and locking connector. Offering eight hours of battery life using two AA batteries (not included), the CB99 transmitter features a variable Gain control, popless 1-touch Mute button and metal belt clip.   Concert 99 Earset System Frequency-agile UHF wireless system 80 operating channels across 24MHz bandwidth Up to eight simultaneous systems per frequency band (region dependent) AC adapter and rackmount kit included CR99 Wireless Receiver Rugged all-metal, rack mountable chassis Multifunctional backlit LCD (RF, audio, transmitter battery levels) Group scan for easy single or multi-system setup IR sync wirelessly matches receiver and transmitter frequency True RF Diversity design minimizes dropouts Tone key prevents unwanted noise when transmitter is off/out of range Removable 1/4-wave antennas Balanced XLR and 1/4" outputs CB99 Beltpack Transmitter SE10 Earset Microphone with Miniature Condenser Capsule, moisture-resistant design and locking connector Offers up to eight hours of battery life using two AA batteries 300' operating range (line-of-sight) Variable Gain control 1-touch Mute Metal belt clip

Operating Frequencies 824 - 831 MHz, 863 - 865 MHz Number Of Channels 2 x 4 frequencies Frequency Stability +/- 0.005%, Phase lock loop frequency control Modulation Mode FM Frequency Response 60 Hz - 16 kHz Operating Range 60m, typical Receiving System Antenna switching diversity Image Rejection 55dB minimum Dynamic Range HH: 108 dB, BP 103 dB (@ max deviation) Sensitivity 10dBµV (S/N 60dB @ 20 kHz deviation) Total Harmonic Distortion Audio Output Unbalanced -2dBV Audio Output Balanced 4dBV Output Connectors (Microphone) Balanced: XLRM-type Output Connectors (Instrument) Unbalanced: 6.3 mm mono jack Maximum Output Level Mic / Line (0 / -20dB) Antenna Input BNC type, 50 - BIAS voltage 12V DC 100mA each Dimensions 200 mm x 42 mm x 122 mm (W x H x D) Weight 418 g without accessories Accessories Included AC Adapter, Antennas, Rack mount adapter, protective carrying case RF Power Output 10 mW Spurious Emissions Following national regulatios Microphone Element Condenser Cardioid Battery Type Two 1.5V AA alkaline Battery Life 10 hours - depending on battery type and use pattern Dimensions 268 mm long - 52 mm (diameter) Accessories Included Stand clamp

The DJI Spark Remote Controller gives you a 2km transmission range in wide open areas. It displays a live feed via the DJI GO 4 app by connecting to your device through a new Wi-Fi signal transmission system.  Specifications: Operating frequencies: 2.412-2.462 GHz, 5.745-5.825 GHz Max transmission distance (unobstructed, free of interference): 2.4 GHz: 2 km (FCC), 0.5 km (CE), 0.5 km (SRRC) 5.8 GHz: 2 km (FCC), 0.3 km (CE), 1.2 km (SRRC) Operating temperature range: 0C to 40C Built-in battery: 2970 mAh Transmitter power (EIRP): 2.4 GHz: 26 dbm (FCC), 18 dBm (CE), 18 dBm (SRRC) 5.8 GHz: 28 dbm (FCC), 14 dBm (CE), 26 dBm (SRRC) Operating voltage: 950 mA, 3.7 V Supported mobile device thickness: 6.5 mm - 8.5 mm Max length: 160 mm Compatibility: DJI Spark Features: Folding clamps hold your mobile device securely Remote Controller's battery life: Approx. 2.5 hours Video transmission range up to 2 km Top speed of up to 50 kph in Sport mode What's Included: 1 x DJI Spark Remote Controller Click Below to see what else we are selling!  

5Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 5 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

3Pcs HC-12 433 SI4463 Wireless Serial Module Remote 1000M With Antenna Note: HC-11 cannot communicate with the HC-12, they work independently, in pairs Features: Supply voltage: 3.2V~5.5V. (If the module you want to work long hours in the emission state, it is recommended that when the supply voltage exceeds 4.5V threaded a 1N4007 diode to prevent module built-in LDO heated) Default address range (open field test): About 600m (maximum communication distance adjustable reach 1000m, the baud rate is 5000bps) Default idle current: 16MA (In different working modes operating current is different) Module dimensions: 27.8 x 14.4 x 4mm Operating frequency range: 433.4-473.0MHz, up to 100 channels of communication The maximum transmit power: 100mW (settable) Module support software upgrade Default factory settings: Mode FU3, baud rate is 9600bps, communication channels CH001 (433.4M) Package included: 3 x HC-12 433 Serial module AT command set:   Module parameters, AT command set AT command is used to set the parameters of the function module and switching modules need to exit the setting mode after setting to take effect. Meanwhile, modify the parameters and functions, power-down is not lost.   Enter the command mode: The first entry mode - normal use (has the power) in the first 5-pin "SET" is set low; The second mode of entry - power, 5th pin "SET" again first set low on power. Both methods can make the module into AT command mode, release ("SET" pin is not connected low) to exit command mode. After the exit command mode, if you change the module function, the function will be cut to the appropriate state. The second way is fixed in serial format 9600, N, 1 into the AT.   Instructions: 1. AT Test instructions Example: Send module commands "AT", the module returns "OK".   2. AT + Bxxxx Change the serial port baud rate command. You can set the baud rate is 1200bps, 2400bps, 4800bps, 9600bps, 19200bps, 38400bps, 57600bps and 115200bps. The factory default is 9600bps. Example: Set the module serial port baud rate is 19200bps, please send module command "AT + B19200", the module returns "OK + B19200".   3. AT + Cxxx Change the wireless communication channel, selectable from 001 to 127 (more than 100 radio channels after the communication distance not guaranteed). The default value is 001 radio channels, operating frequency is 433.4MHz. Step channel is 400KHz, the operating frequency of the channel 100 is 473.0 MHz.   Example: Set module to channel 21, please send module command "AT + C021", the module returns "OK + C021". After exiting the command mode, the module in the first 21 channels, operating frequency is 441.4 MHz. Note: Because the wireless receiver module sensitivity HC-12 is relatively high, the baud rate is greater than when air 58000 bps, 5 must be shifted to the adjacent channel use. When the air baud rate is not greater than 58000 bps, if the short distance (10 meters) communication, but also need to stagger five adjacent channel use.   4. AT + FUx Change the module serial pass-through mode, there FU1, FU2 and FU3 three modes. Module default mode is FU3, two serial pass-through mode module must be set to the same communication. See detailed above, "wireless serial pass-through" part. Example: Send module commands "AT + FU1", the module returns "AT + OK".   5. AT + Px The default setting is 8, maximum transmit power, communication distances. Transmit power level is set to 1, the minimum transmission power. In general, the transmission power of each drop 6dB, communication distance will be reduced by half. Example: Send module commands "AT + P 5", the module returns "OK + P5". After exiting the command mode, the module transmit power is +11 dBm. Package included: 1 x HC-12 module

Overview: 4CH R2 are 4-gang switches with din rail mounting. Sonoff 4CH R2 4 gang light switch supports to connect and control 4 electrical appliances, which can be turned on/off separately by the buttons or iOS/Android App EweLink. Besides, with the multi gang switch, you can check real-time devices status for each device on App. Owning a Sonoff 4CH R2 multi gang switch means you have 4 Sonoff basic WiFi switches integrate together. The enclosure is din rail mount supported! A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish. Sonoff 4CH R2 4 gang WiFi light switch belongs to Sonoff family, definitely, it bears all the functions basic Sonoff has. In EweLink, you can remote turn on/off from anywhere at any time, set single/repeat/countdown timing schedules to turn on/off at a specified time, share to others so that they can control together. Sonoff 4CH R2 is hacker-friendly that you can flash your firmware without difficulty. Read ESP8285 datasheet. CE/FCC/RoHS Certified (Download the Certificate and Reports) Works With Amazon Alexa: You can ask Alexa to turn on/off Sonoff 4CH R2. Standard voice control commands phrases (if you just say the device name, Alexa will turn on/off all the 4 gangs immediately): Alexa, turn on {deviceName} Alexa, turn off {deviceName} Alexa, turn on {deviceName} {gangName} Alexa, turn off {deviceName} {gangName} The default names for the 4 gangs are: outlet 1, outlet 2, outlet 3, outlet 4. You can change the name if you like. Explanation: if the device name of your Sonoff 4CH R2 is "My Switch", the gang name is "Outlet 1", then you can control with "Alexa, turn on My Switch Outlet 1". For detailed tutorial, please click here. Features: Remote ON/OFF–Turn electrical devices on/off from anywhere App Support –Free iOS and Android mobile App eWeLink Independent control–Control each gang separately DIN Rail Mounted– Great for industrial control Sync Status–Real-time device status provided to App Share Control–Control your smart home together with your family Timing–Set scheduled/countdown timers to turn on/off at specified time Scene–Turn on/off a gang of devices with one tap Smart Scene–Triggered on/off by temp, hum or other environmental conditions from sensor Compatibility –Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nest Specification: Power Supply: 90V~250V AC(50/60Hz) Max. Current: 10A/gang Max. Power: 2200W/gang, 2200W/Total Wireless Standard: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK Enclosure Material: Fire-retardant ABS V0 Gang: 4 Dimensions: 145*90*40 (mm) Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F) Operating Humidity: 5%-90%RH, Non-condensing Certification: CE/FCC/RoHS (Download the Certificate and Reports) Package included: 1 x SONOFF® 4CH R2 Module

IN STOCK. DISPATCHED/COLLECTION SAME DAY! PRODUCT DESCRIPTION Remote ON/OFF —Turn electrical devices on/off from anywhere App Support  —Free iOS and Android mobile App eWeLink DIN Rail Mounted — Great for industrial control Sync Status —Real-time device status provided to App Share Control— Control your smart home together with your family Timing —Set scheduled/countdown timers to turn on/off at specified time Scene —Turn on/off a gang of devices with one tap Smart Scene —Triggered on/off by temp, hum or other environmental conditions from sensor Compatibility — Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nest Works With Amazon Alexa You can ask Alexa to turn on/off Sonoff 4CH (R2). Standard voice control commands phrases (if you just say the device name, Alexa will turn on/off all the 4 gangs immediately): Alexa, turn on {deviceName} Alexa, turn off {deviceName} Alexa, turn on {deviceName} {gangName} Alexa, turn off {deviceName} {gangName} The default names for the 4 gangs are: outlet 1, outlet 2, outlet 3, outlet 4. You can change the name if you like. Explanation: if the device name of your Sonoff 4CH (R2) is "My Switch", the gang name is "Outlet 1", then you can control with "Alexa, turn on My Switch Outlet 1". Features Turn on/off 4 home appliances remotely Device status's synchronously display Scheduled/Countdown timers Share control Supports setting power on status Works with Amazon Echo, Echo Dot, Amazon Tap Works with Google Home, Google Nest Works with IFTTT PRODUCT SPECIFICATIONS Power Supply: 90V~250V AC(50/60Hz) Max. Current: 10A/gang Max. Power：2200W/gang, 2200W/Total Wireless Standard: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK Enclosure Material: Fire-retardant ABS V0 Gang:  4 Dimensions: 145 x 90 x 40mm Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F) Operating Humidity: 5%-90%RH, Non-condensing 4CH Certification: CE/FCC/RoHS 4CH R2 Certification: CE/RoHS, FCC

THE PRICE ON THIS ITEM INCLUDES DELIVERY VIA COURIER TO YOUR DOOR!! NO ADDITIONAL COSTS!!  YOU ONLY PAY 3% INSURANCE ON YOUR PARCEL!! NO SURPRISES AS WE PAY ALL CUSTOM FEES ETC!!  WE TAKE THE RISK FOR YOU!! EXCLUSIVE HASSLE FREE SHOPPING AT IT’S BEST!!! DELIVERY ETA IS 7 to 15 DAYS FROM DATE OF ORDER Overview:   4CH R2 are 4-gang switches with din rail mounting. Sonoff 4CH R2 4 gang light switch supports to connect and control 4 electrical appliances, which can be turned on/off separately by the buttons or iOS/Android App EweLink. Besides, with the multi gang switch, you can check real-time devices status for each device on App. Owning a Sonoff 4CH R2 multi gang switch means you have 4 Sonoff basic WiFi switches integrate together.  The enclosure is din rail mount supported! A DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. These products are typically made from cold rolled carbon steel sheet with a zinc-plated or chromated bright surface finish. Sonoff 4CH R2 4 gang WiFi light switch belongs to Sonoff family, definitely, it bears all the functions basic Sonoff has. In EweLink, you can remote turn on/off from anywhere at any time, set single/repeat/countdown timing schedules to turn on/off at a specified time, share to others so that they can control together. Sonoff 4CH R2 is hacker-friendly that you can flash your firmware without difficulty. Read  ESP8285 datasheet. CE/FCC/RoHS Certified Works With Amazon Alexa:   You can ask Alexa to turn on/off Sonoff 4CH R2. Standard voice control commands phrases (if you just say the device name, Alexa will turn on/off all the 4 gangs immediately): Alexa, turn on {deviceName} Alexa, turn off {deviceName} Alexa, turn on {deviceName} {gangName} Alexa, turn off {deviceName} {gangName} The default names for the 4 gangs are: outlet 1, outlet 2, outlet 3, outlet 4. You can change the name if you like. Explanation: if the device name of your Sonoff 4CH R2 is "My Switch", the gang name is "Outlet 1", then you can control with "Alexa, turn on My Switch Outlet 1". For detailed tutorial, please click  here. Features:   Remote ON/OFF–Turn electrical devices on/off from anywhere App Support –Free iOS and Android mobile App eWeLink Independent control–Control each gang separately DIN Rail Mounted– Great for industrial control Sync Status–Real-time device status provided to App Share Control–Control your smart home together with your family Timing–Set scheduled/countdown timers to turn on/off at specified time Scene–Turn on/off a gang of devices with one tap Smart Scene–Triggered on/off by temp, hum or other environmental conditions from sensor Compatibility –Works perfectly with Amazon Alexa, Google Assistant, IFTTT, Google Nest   Specification:   Power Supply: 90V~250V AC(50/60Hz) Max. Current: 10A/gang Max. Power: 2200W/gang, 2200W/Total Wireless Standard: 802.11 b/g/n Security Mechanism: WPA-PSK/WPA2-PSK Enclosure Material: Fire-retardant ABS V0 Gang:  4 Dimensions: 145*90*40 (mm) Operating Temperature(recommended): 0ºC-40ºC(32°F-104°F) Operating Humidity: 5%-90%RH, Non-condensing Certification: CE/FCC/RoHS Package included: 1 x   SONOFF® 4CH R2 Module