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Aqualarm 20118 Engine Overheat Detector, 1/2” MPT
100 in stock
Two terminal, non polarity, normally open detector that closes when boat engine temperature reaches 200°F and activates a visual and/or audible boat alarm device. Multi voltage switch for 12v, 24v, and 32v. 20118: 1/2′ MPT that installs into a 1/2′ FPT plugged hole in the engine.