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Homemade Wireless Temperature Alert


BUILDER:
Nathan McBride on makeprojects.com
DESCRIPTION:
Homemade wireless temperature alert adaptation of a mechanical temperature sensor to wireless operation. Contact pins are positioned to desired thresholds, and a wireless transmitter is connected to the pins and sensing coil. The circuit is closed once the coil/needle contacts a pin. Signals are sent from the transmitter to a compatible receiver.
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