Specifications: Flow range: 5-150L/min Sensor: Hall effect Maximum current:10 mA(DC 5V) Working voltage range:DC 5-18 V Load capacity:≤10 mA(DC 5V) Operating Temp: ≤80℃ Operating humidity: 35%- 90%RH Allow compression:Water pressure 1.75 Mpa below Insulation resistance:>100M OHM Storage Temperature:-25℃-80℃ Storage humidity:25% - 95%RH Output Waveform:Square Wave,output pulse singal. Cable length:480mm Max Size:92mm*68mm Package include: Flowmeter x 1