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 ...
Out of stock
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 ...
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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.
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(167) · In stock
1. Ranging and Alarm Kit: Composes of a HC-SR04 ultrasonic Ranging sensor module, a buzzer and a STC89C25 chip(Programmed to use).
In stock
Brand: Westgate Manufacturing; Voltage: 480V; To be used with Westgate ULHB Series. $62.99 Regular price $75.59 Sale price.
Missing: detector electronics
$14.83
The Ultrasonic Distance Sensor Soldering Project is a fantastic STEM kit for students or anyone looking to learn or practice their soldering skills.
$6.95 In stock
The US-100 is very similar to the popular HC-SR04 ultrasonic sensors, and even looks the same, but has a few extra tricks.
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 ...
$133.16 In stock
SensComp's Smart Sensor Ultrasonic Development Kit for Arduino provides a complete kit solution to simplify your product design and packaging.
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