Two terminal, non polarity, normally open detector that closes when boat engine temperature reaches 200 degreesF and activates a visual and/or audible boat alarm device. Multi voltage switch for 12v, 24v, and 32v.
20116: A bolt-on type that bolts on the engine block or engine head using the engine or head bolts.
20118: 1/2' MPT that installs into a 1/2' FPT plugged hole in the engine. Description Surface mount

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