1/2" FNPT SPDT Liquid Flow Switch 24VDC 1.5 to 20 gpm, Gems Sensors, Mfr#: RFS, 156268

Liquid Flow Switch, Ambient Temperature – Maximum 212 Degrees F, Ambient Temperature – Minimum -20 Degrees F, Connection Size 1/2 in, Connection Type FNPT, Contact Rating (AC) 45 mA @ 115V (No Load), 95 mA @ 115V (Load – Relay Energized), Contact Rating (DC) 20 mA @ 24V, Filter Rating – Maximum 150 micron, Flow Rate – Maximum 20 gpm, Flow Rate – Minimum 4 gpm, Flow Switch Type Hall Effect, Housing Material Brass, Media Temperature – Maximum 212 Degrees F