40017-400 Flow Switch Aqualarm 1-1/2

Activates a visual or audible device immediately whenever raw water flow is stopped or impeded, switch is a two wire non-polarity switch that is normally Open (normally closed available) and closes at 6 to 8 GPM of raw water flow. Switch stays closed until flow slows or ceases and then actives any audible or visual alarm (not included).

Multi-voltage, works with 12v, 24v, 32v. Now with 3.0 amp switch.