This 3 wire dry contact reed switch is hermetically sealed and comes with approximately 5 feet of cable. This can be extended with standard Thermastat wire or a similar wire. It attaches to the meter with a small screw. There are small pins that insert into pre-drilled holes on the face of the meter which leave no questions on how to position the switch. This is an ideal switch when you need to use the pulse output information for multiple purposes.
NOTE: Black is the common wire. Blue and Red are the signal wires.
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