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This kit can be set to indicate a rise or drop in temperature. You simply adjust the control knob on the kit for the ambient control temperature that the thermistor is sensing. Now as the temperature changes, a Red or Green LED indicates over or under temperature from the standard. Features an IC circuit and operation from one 9V battery (not included). Use this kit to warn of garden temperatures below 32° or refrigerator/freezer temperatures above normal, etc. Order optional wire to allow for remote location of thermistor sensor if desired. Size of PC board 2" x 1.8". Comes complete with all parts, PC board, 9" of wire, and instructions. Skill Level 1. This kit requires soldering of components to the PC board while building.
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