Product Name: Water Flow Sensor SwitchModel: SEN-HZ21WIType: Hall EffectMax Switch Current and Voltage: 10mA, DC5V-24V;WorkingRange: 1-30L/minMale Port Thread Dia(Each End): G1/2Max. Pressure: 1 Resistance: 100M Ohm(Min)Total Size: forty four x 27 Length: 34cmMain Material: CopperColor: Gold Tone, BlackWeight: 77g