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The FPR100 (Frost Protection Relay) was designed to helps prevent frost damage by signalling for a generating set or heating appliance to run. It does this by monitoring the ambient temperature via an integral thermistor. Over recent years with the ever increasing need for power storage using lithium batteries the FPR100 has become an important unit in protecting batteries, either turning on a heater or preventing the charger from supplying the battery.

Other temperature ranges are available on request.


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