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Description |
| This alarm is a simple and useful kit for the home, car, or any entrance for security. The alarm is trigger by a magnet and reed switch with a piezo sounder that produces a 100dB sound. The circuit is built around the HT2812D intergrated dip IC. A relay may also be connected to control appliances, external alarms, etc. A 9V battery (not included) powers the circuit. Kit includes a description of component marking codes for resistors, capacitors, Metric units and conversions. PC board size is 1-3/4" x 3" inches. Kit contains over 15 components, schematic, and screened PC board. No. 80-101. In Stock - Can Ship Today! |
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