20pcs sensor

20Pcs DS18B20 Temperature Sensor 18B20 TO-92 Encapsulation Specification: Temperature measurement range: -55°C ~ +125°C Accuracy: ± 0.5°C Encapsulation: TO-92 Quantity: 20pcs Package included: 20 x DS18B20

20Pcs Laser Receiver Non-modulator Tube Sensor Module For Arduino Features: PCB size: 1.5 x 1.9cm Working voltage: 5V Output high level when receive laser signal Output low level when not receive laser signal Note: The sensor uses a non-modulated laser receiver, please use indoors where no light, sunlight or other fixtures may interfere, recommended for use in dark environments. Package included: 20 x Laser sensor module

20Pcs Soil Hygrometer Humidity Detection Moisture Sensor For Arduino Description: This is a summary of the soil moisture sensor can be used to detect moisture, when the soil is dry, the module outputs a high level, whereas output low. Using this sensor make an automatic watering system, so that your garden plants without people to manage. Operating voltage: 3.3V~5V. Adjustable sensitivity (shown in blue digital potentiometer adjustment) Dual output mode,analog output more accurate. A fixed bolt hole for easy installation. With power indicator (red) and digital switching output indicator (green). Having LM393 comparator chip, stable. Panel PCB Dimension: 3cm x 1.5cm. Soil Probe Dimension: 6cm x 2cm. Cable Length: 21cm. VCC: 3.3V-5V. GND: GND. DO: digital output interface(0 and 1). AO: analog output interface. Instructions for Use: 1. Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil. 2. Module to reach the threshold value is set in the soil moisture, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low. 3. The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture. 4. The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment. 5. Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture. Package Included: 20 x Soil moisture detector module 20 x Probe 20 x 2P Jumper Cable

20Pcs ND 2/4/8/16 Filter Kit Holder Wide Adapter Lens Hood LF292 For Cokin P Description: In photography, filter have the effect of "dressing".If you can use the filter flexible, it will help you improve the performance of photography, and can change the scene of the tone, make the photos more close to nature. So it is popular with photographers alike. And gradual filter is a MUST for digital users, because the digital sensor unlike film has very low exposure tolerance. Detail will be lost on both low and high light area. To correct this, you need gradual filter to balance it! Features: Control light and colour directly on your raw images at the time of shooting, Keep the quality of your images without excessive post production work,save your time. Same filter for all your lenses by just replacing the adaptor ring. Weight: 355g Fitment: Cokin P series For 8pcs Cokin ND Filter Set(Third Party) Compatible with Cokin P series. To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background. To decrease the effective ISO of high speed film (ie: above ISO400) and allow it to be used outdoors in blight situations. To enable slow shutter speeds to be used, especially with fast films, to record movement in subjects such as waterfalls, clouds, cars, seas, etc. To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which would normally cause over-exposure. For 9pcs Ring Adapter + 1pcs Filter Holder(4-slots) +1pcs Wide Angle Filter Holder(1-slot) The Cokin creative system consists of 3 main components: An Adaptor Ring + A Filter Holder + 1 or more filters. Screw the adaptor ring onto your lens. Slide the filter-holder on the adaptor ring until it snaps in place. Slide the filter (up to 4) into one of the filter-holder slots. Mount Lens Hood onto your filter-holder by pressing on the upper and lower parts of the lens hood. Package Included: 8pcs Filter Set (Third Party) 1 x ND2 filter 1 x G.ND2 filter 1 x ND4 filter 1 x G.ND4 filter 1 x ND8 filter 1 x G.ND8 filter 1 x ND16 filter 1 x G.ND16 filter 9pcs Ring Adapter + 1 Filter Holder + 1 Wide Angle Filter Holder + 1 Lens Hood (Third Party) 1 x 49mm Ring Adapter 1 x 52mm Ring Adapter 1 x 55mm Ring Adapter 1 x 58mm Ring Adapter 1 x 62mm Ring Adapter 1 x 67mm Ring Adapter 1 x 72mm Ring Adapter 1 x 77mm Ring Adapter 1 x 82mm Ring Adapter 1 x 4-Slots Filter Holder 1 x 1-Slot Wide Angle Filter Holder 1 x Lens Hood Detail Pictures:  

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Features: 1, Transmission signal processing control chip RCWL-9196 2, Wide operating voltage range: 4.0-28.0V 3, Compared with the traditional infrared feeling PIR, with the penetrating detection capability 4, Block time, distance adjustable 5, Output 3.3V power supply 6, Board size: 35.9mmx17.3mm Application Design Note: 1, the sensing face in front of the gold without any shelter. 2, front and rear sensing surface space to set aside more than 1CM 3, the module carrier plane and install as flat line 4, a certain application of effective detection area 5, the component side of the module is positive sensing face, the opposite is negative sensing surface. Negative sensing surface sensing less effective 6, microwave modules can not be large-scale applications in the same area, otherwise there will be mutual interference. Between single individuals over distance greater than 1M   Package included:   20 x Microwave Radar Sensor Module

Description: The item is for Arduino robot kit, raindrops, rain sensor, monitoring can be used for a variety of weather conditions, and converted into the number of the reference signal and the AO output. The sensor uses the FR-04 high-quality double-sided materials, King Size 5.0 * 4.0CM, and with the surface of the nickel plating treatment, against oxidative, conductivity, superior performance and longevity; The output in the form: digital switching outputs (0 and 1) and analog AO voltage output; TTL-level output, TTL output valid signal is low. Driving capability 100MA so, can directly drive relays, buzzer, a small fan, and so on. Sensitivity can be adjusted via potentiometer LED lights up when there is no rain output is high, raindrop up, the output ground level, LED light. Feature: Distribution bit to adjust sensitivity A fixed bolt hole for easy installation Power indicator, the output signal LED indicator The comparator output, the signal is clean, waveform, driving ability over 15mA Wide voltage LM393 comparator A large area of ??rain board, more conducive to detect rain Board with positioning holes to facilitate installation Raindrops and control panels are separate, easy to wire leads Specification: Small board PCB size: 3.2cm x 1.4cm Operating voltage: 3.3V-5V Voltage: 5V How to use: Connected to 5V power supply, the power indicator light, sensor board is not water droplets, DO output is high, the switch lights off, dropping on a drop of water, DO output is low, the indicator light switch, Brush off the the above water droplets, has returned to output high state.... AO analog output can be connected to the microcontroller AD port to detect the size of the drops in the above rainfall. DO TTL digital outputs can also be connected to the microcontroller detects whether there is rain. Connection mode: 1, VCC: positive power supply (3-5V) 2, GND: negative one. 3, DO: TTL switching signal output 4, AO: Analog signal output Package included:

Product Usage: 1, the meter pulse data sampling 2, fax machine shredder paper detection 3, obstacle detection 4, black and white line detection Product parameters: Infrared reflection sensor: TCRT5000 Detection reflection distance: 1mm~25mm Working voltage: 5V Output form: digital signal (0 and 1) Installation: with fixing bolt holes Small board PCB size: 3.5cm x 1cm Single weight: 4.5g Features: The infrared emitting diode of the TCRT5000 sensor continuously emits infrared rays. When the emitted infrared rays are not reflected back or reflected back but the intensity is not large enough, the infrared receiving tube is always in the off state, and the output end of the module is low level, indicating The diode is always off; when the detected object appears in the detection range, the infrared light is reflected back and the intensity is large enough, and the infrared receiving tube is saturated. At this time, the output end of the module is high, indicating that the diode is illuminated. Wiring: 1. VCC: Connect the positive pole of the power supply (5V) 2, GND: connected to the negative power supply 3, OUT: high / low level switching signal (digital signal 0 and 1) Package Included: 20 x TCRT5000 tracing module (tested, electrostatic bag packaging)

Feature: Quantity: 1pc Size: 3.5 x 1cm Power supply: 5V DC Detector distance: 10mm Build-in Tcrt5000 Sensor NSOR Applicable to a variety of platforms including Arduino / AVR / ARM /PIC Package included: 20 x Infrared line track follower sensor module

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Description: Infrared receiving module adopts 1838 infrared receiving head Light resistance, strong electromagnetic interference, built-in infrared dedicated IC, can work under 500 lux light intensity Widely used in: stereo, TV, video machine, disc machine, set-top boxes, digital photo frame, car stereo, remote control toys, satellite receivers, hard disk player, air conditioner, heater, electric fan, lighting and other home appliances Specification: Dimension: 6.4 x 7.4 x 5.1mm Receiving angle: 90 ° Working voltage: 2.7 ~ 5.5V Frequency: 37.9KHz Receiving range: 18m Package included: 20 x Infrared sensor receiver module

If you don't know how to connect this dimmer to a light, here is the wiring instruction:  Specification: Material: plastic Color: black AC: 220V 50Hz MAX power: 150W 3 levels: low, medium, high, then off Size: 4.5 x 3.5 x 1.5cm (L x W x H) Cable length: about 9cm Feature: CE approval Note: connect the wire correct The power of lamp can not exceed 60W The yellow line must connect with conductor, such as metal, can not connect with plastic or wood After install the touch device, dimming or open lamp can not allowed on power cord Note: Fit for ordinary light bulbs, not suitable for LED bulb or energy saving lamps Package included: 20 x 3-way touch sensor switch