Motion Detector Ultrasonic Movement Detector

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.

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
• Sensitivity user adjustable.
• Has a range of 12 to 24 feet.

Downloads:

PDF Manual / Specs Download (209KB)