How to Build a Freezer Meltdown Alarm Circuit Diagram? Thats easy or nothing ? This is a simplest circuit, This is a circuit diagram. The meltdown is a magnet held to a small stand by ice. A reed switch is below the magnet. When the ice melts, the magnet falls on the switch, closing it, and completing the alarm circuit.
Freezer Meltdown Alarm Circuit Diagram
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