Security: Movement & Vibration Detector Circuits

A bit different from other kits. We supply the three basic components for you to make your own movement detector. Included is a PCB mounted fresnel lens, a PIR movement sensor and the latest movement IC just released. Eight pages of application notes show

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 setable via control. Cr

This is an excellent security device, sees infra red heat of intruder in field of view. This is a recent design for a PIR detector; should not be underestimated. Rather than the usual opamps-amps and amplifiers, this kit uses a movement IC. Has PC board m

An electronic circuit that uses a regular 2-inch speaker to detect for low frequency vibrations in the ground (such as those cause by a deer or human walking), and sounds an alarm.

This super sensor detector sounds an alarm if someone approaches the unit. Adds safety to your home or office. Learn the basics of motion detector technology. Uses pyroelectric infrared sensor.

Build a motorcycle alarm for your motorcycle. This electronic circuit sense when your motorbike is moved and sets of an alarm for 2 minutes. Cheap motorcycle alarm!