Extremely heavy duty
Single gang push plate switch. 1 1/2 inch wide push plate on a 1 3/4 inch wide back plate. No/Nc & SPDT dry contact output. 1 - 30 second timer. 12-24 vdc. Aluminum on
aluminum.Don't forget the power supply
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Or a power supply with back up battery system
Go here We have found this manufacturer to be extremely user friendly !