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The Ramsey MD3C Microwave Motion Detector Kit with case is a great introduction to microwave basics and ideal for home alarms.
This unit sends out a microwave signal and looks for a return; a moving object will reflect back some microwave energy and the kit detects it. Since microwaves (no, you won't get cooked or burned by them!) are used - heat, light, sound or vibration will not affect the sensor. This makes it ideal for car and home alarms, outdoor and garage light operators, animal in-your-garbage alarms, and tons more ideas limited only by your imagination.
The MD3 is a great introduction to the basic principles of our "Speedy" Personal Speed Radar and you can use it to investigate the properties of microwaves. Kit includes detailed instructions, theory of operation, the custom case set shown, and lots of applications and hook-ups. Runs on 9 to 15 VDC. Case size: 5"W x 11/2"H x 51/4"D.
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