Flow Switch, Ambient Temperature - Maximum 140 Degrees F, Ambient Temperature - Minimum -40 Degrees F, Connection Size 1 in, Connection Type NPT, Contact Rating (AC) 16 A @ 120V (Full Load), Flow Rate - Maximum 760 gpm, Flow Rate - Minimum 2.5 gpm, Flow Switch Type Paddle, For Pipe Size 1 in, 2 in, 3 in, 6 in, Frequency 50 Hz, 60 Hz, Horsepower - Maximum 1 hp, Housing Material Stainless Steel, Media Temperature - Maximum 250 Degrees F, Media Temperature - Minimum -20 Degrees F