Motion Detector Ultrasonic Movement Detector Kit

ULTRASONIC MOVEMENT DETECTOR (Kit - Soldering Required)
(Click Picture to Enlarge) diy k20	Ultrasonic Movement Detector Kit 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 loads. The unit switches a LED for movement indication. Sensitivity is adjustable via control. Crystal locked circuit for maximum stability. A good circuit for detecting intruders, pets, etc., and then turning on a light, alarm bell, etc. 9 volt battery operation - DIY Kit 20. Specifications: Main Board: L: 2-3/4" W: 1-15/16" H: 3/4" Sensor Board: L: 2-3/4" W: 7/16" H: 3/4" Requires 9 Volt Battery (or Use this Power Supply instead of a Battery) Sensitivity user adjustable. Has a range of 12 to 22 feet. See CK203.pdf for complete details, including schematic and theory of operation. Requires Adobe Acrobat Reader available at www.adobe.com for FREE! Transducer spec sheet here as ck203transducers.pdf
Note: This is a kit, you will receive parts to build the item pictured. If you do not know how to solder you can check out our learn to solder kit.	CK0203 Ultrasonic Movement Detector Kit - $24.95
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