Google
Out of stock
The circuit uses a matched pair of 40 kHz transducer elements to detect movement up to 22 feet away. You may add a relay (not included) to switch higher voltage ...
A matched pair of ultrasonic transducers operating at 40KHz will reliably detect movement 4m to 7m away. Use 9V to 12V. Two circuit boards.
In stock
This kit lets you monitor door openings and movements passed near a certain point. The circuit is built around a matched pair of ceramic transducers which ...
Rating (19) · In stock
This works as advertised. It detects air disturbances in the cabin of the vehicle. With the sensors properly set up you CAN leave your windows down.
In stock
Crystal locked circuit for maximum stability. A good circuit for detecting intruders, pets, etc., and then turning on a light, alarm bell, etc.
In stock
Technical Specifications: Housing: Aluminum heat sink, outdoor powder coating. Voltage: 120-277V AC; 60Hz AC; Cord type: 6 ft SJTW 18/3 AWG cable; Efficacy: ...
Missing: detector electronics
In stock
Elevate your lighting control with the Ultrasonic Bi-Level Motion Sensor Kit. Experience precise motion detection and bi-level dimming for optimal energy ...
In stock
SensComp's Smart Sensor Ultrasonic Development Kit for Arduino provides a complete kit solution to simplify your product design and packaging.
In stock
The Ultrasonic Distance Sensor Soldering Project is a fantastic STEM kit for students or anyone looking to learn or practice their soldering skills.
Mar 13, 2010 · It also works from a supply as low as 5V. The kit does not use slow 50Hz rectifier diodes. It uses 1N4148 fast diodes. The BC639 transistor ...