Presence sensor

Buy Human Presence Sensor adopts microwave radar technology and utilizes doppler principle. So it can se for R999.00

Buy Human Presence Sensor adopts microwave radar technology and utilizes doppler principle. So it can for R1,058.94

Features: 1. Compact construction, sense the presence of an object by using the reflective IR beam from the object. 2. Consists of a phototransistor. 3. Snap-in construction for PCB mounting. 4. Plastic polycarbonate housing construction which prevents crosstalk. 5. Position sensor for shaft encoder. 6. Detection of reflective materials such as paper, IBM cards, magnetic tapes, etc. 7. Limit switch foe mechanical motions in VCR. 8. General purpose - wherever the space is limited. Specifications: Sensing Distance: 12mm. Operating Wavelength: 950 mm. Sensing Method: Reflective. Reverse Voltage: 5V. Forward Current: 60mA. Forward Surge Current: 3A. Emitter Power Dissipation: 100mW. Collector Emitter Voltage: 70V. Emitter Collector Voltage: 5V. Collector Current: 100mA. Detector Power Dissipation: 100mW. Sensor Total Power Dissipation: 200mW. Operating Temperature: -25°C ~ +85°C. Package Included: 3 x TCRT5000 Sensor

Description:   The AS3935 is a programmable fully integrated flash sensor IC that detects the presence and approach of potentially hazardous  flash  activity in the vicinity and provides an estimation on the distance to the head of the storm. The embedded  flash  algorithm checks the incoming signal pattern to reject the potential man-made disturbers. The AS3935 can also provide information on the noise level and inform the external unit(e.g. microcontroller) in case of high noise conditions, with the noise floor generator and noise floor evaluation blocks. The AS3935 can be programmed via a 4-wire standard SPI or an IIC. Also, in case the latter is chosen, it is possible to choose among four different addresses. Two clocks are internally generated by two different RC-Oscillators: TRCO and SRCO. An automatic procedure can increase the precision of those oscillators. The AS3935 can be either supplied by an internal voltage regulator or directly by VDD.   Feature:   Flash  sensor warns of  flash  storm activity within a radius of 40km Distance estimation to the head of the storm down to 1km in 14steps Detects both cloud-to-ground and intra-cloud(cloud-to-cloud) flashes Embedded man-made disturber rejection algorithm Programmable detection levels enable threshold setting for optional controls SPI and IIC interface is used for control and register reading Antenna turning to compensate variations of the external components Supply voltage range: 2.4-5.5V Power-down, listening, and active mode Package: 16LD MLPQ(4x4mm)   Applications:   AS3935 is ideal for Weather Stations, Clocks, Sports Equipment, portables, Pool Safety, Uninterruptible Power Supply(UPS), Global Positioning System(GPS), Cellular phones, Watches, and Golf Equipment. Package included: 1 x CJMCU-3935 AS3935 F lash  Sensor Module,,,,,

1,000W incandescent and 500W fluorescent switching capacity 200 degrees of detection coverage LED indicator lights when detecting during day and glows red at night Built-in surge protector withstands up to 6,000V Adjustable switch-on time and motion sensitivity This RAB Lighting STL200 Stealth sensor has a 1,000 watt incandescent and 500 watt fluorescent switching capacity, a 200 degree detection pattern, and is suitable for switching lights on and off according to the presence of daylight or a heat signature within range of the detection pattern. It has built-in surge protection of up to 6,000V, and a photoelectric control that automatically deactivates the unit during daylight if desired. It compensates for ambient temperature and has a manual override feature that resets itself to automatic at dawn. Both the detector sensitivity and the switch-on time are adjustable. This bronze-colored sensor is Underwriters Laboratories (UL) listed as suitable for use in wet locations. It can be used in a variety of outdoor switching applications.

- Color: White- Material: ABS housing- Power: DC 12V (9~16V)- Power consumption (standby): 5mA- Power consumption (alarmed): 80mA- Detection output: Normally closed contact- Tamper output: Normally closed contact- Yellow LED: Indicates environmental noise level- Red LED: Indicates trigger signal sent to alarm- Software driven, 8/12 bit microprocessor controlled digital signal processing (8MHz)- High frequency sound pressure detection- Full audio spectrum 7 frequency signal and impact analysis including infra-sound pressure analysis- Digital RFI/EMI filtering, high immunity- Manual sensitivity setting to avoid false alarm- Effective coverage in the presence of plate, tempered and laminated glass General Material: Specification Battery included or not No Power Adaptor no Power Adapter Without Power Adapter Dimensions & Weight Packing List 1 * piece

Product Features Uses a 3 inch LCD panel and a micro SD slot to display who is at your door and capture the image without alerting them to your presence (2 GB micro SD card is not included) Simply push the button to display and record a large image of the person outside your door Compensates for low-light images and eliminates "fish eye" distortion Optional Knocking Sensor and Motion Sensor allow photos to be taken automatically, even when you're away Turns off automatically after 10 seconds to conserve battery life This "second generation" Brinno Digital PeepHole Viewer uses a 3 inch LCD panel and a micro SD slot to display who is at your door and capture the image without alerting them to your presence. The PeepHole Viewer turns a hard-to-see peephole image into a big bright image. Simply push the button to see and record a large image of the person outside your door. The image is easy to see for people of any height and is similar to that on the display of a digital camera. The viewer compensates for low-light images and eliminates "fish eye" distortion. A second press of the button provides a zoomed image, which enlarges the center of the image for viewing facial details. Repeated presses toggle between regular and zoom modes. An optional Knocking Sensor accessory snaps into the back of the unit and causes the PeepHole Viewer to record a photo every time someone knocks on your door, regardless of whether you're at home. An optional Motion Sensor accessory mounts wirelessly outside your door and causes the PeepHole Viewer to record a photo when someone approaches the door, whether you're at home or away. Turns off automatically after 10 seconds to conserve battery life. When the batteries are low, the red Low Battery Light flashes. Replaces existing peep hole in doors 1-3/8" to 2 1/4-Inch thick. Quick, easy installation. Requires 2 AA batteries (included). 2GB micro SD card is NOT included in package

Features: 1. Compact construction, sense the presence of an object by using the reflective IR beam from the object. 2. Consists of a phototransistor. 3. Snap-in construction for PCB mounting. 4. Plastic polycarbonate housing construction which prevents crosstalk. 5. Position sensor for shaft encoder. 6. Detection of reflective materials such as paper, IBM cards, magnetic tapes, etc. 7. Limit switch foe mechanical motions in VCR. 8. General purpose - wherever the space is limited. Specifications: Sensing Distance: 12mm. Operating Wavelength: 950 mm. Sensing Method: Reflective. Reverse Voltage: 5V. Forward Current: 60mA. Forward Surge Current: 3A. Emitter Power Dissipation: 100mW. Collector Emitter Voltage: 70V. Emitter Collector Voltage: 5V. Collector Current: 100mA. Detector Power Dissipation: 100mW. Sensor Total Power Dissipation: 200mW. Operating Temperature: -25°C ~ +85°C. Package Included: 10 x TCRT5000 Sensor

Description: 1.Electric Socket Wall AC Power Outlet Voltage Detector Sensor Tester Pen 90-1000V 2.The next generation AC non-contact voltage testers are easy to use — just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there is voltage present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home. 3.Frequency Range: 50 to 500 Hz 4.Test Voltage Range: 90-1000V AC 5.Safety Rating: CAT II 1000v 6.Powered By: 2 x AAA Batteries (Not included) 7.A perfect tool kit for home and electric industry uses 8.Ideal design for testing power cables, circuit breakers, wall sockets, junction boxes, fuses, etc 9.Just press the button, white LED light can be always on when there is absence of voltage 10.Beep sound and red flashing LED would indicate the presence of voltage 11.Totally insulated, no exposed metal or conductive parts 12.Long life and low power consumption 13.Compact, safety, & easy to carry We are at Shop 43 Frontline between the Postnet & Simply Asia Moffet on Main Lifestyle centre Charlo (Port Elizabeth) Mon to Fri 9:00 to 18:00 Closed Fri from 12:15 to 14:15 Sat 9:00 to 15:00 Sun 9:00 to 14:00 Public holidays 9:00 to 15:00 Debit & Credit cards Accepted