The Engine Overheat Detector is a two terminal,non polarity, normally open detector that closes when engine temperature reaches 200°F and activates a visual and/or audible The detector is a bolt-on type that bolts on the engine block or engine head using the engine or head bolts.
It is ideal for metric applications that cannot use the AQA 20118 (212A) Threaded Engine Overheat Detector (which has 1/2 inch NPT threads and screws into an available engine port).
• 20116 - Easy bolt-on, two-wire installation, connects to bell or horn
• 20118 - 1/2" MPT, senses water temperature, easy two-wire installation
• Multi-voltage - works with 12, 24, or 32 volt systems