Waterproof,Heat resistance,pressure resistance,cold resistance. Working voltage: 3-24VDC. Frequency: F=23 * Q (L / Min) error: 2% Flow range:0.3-10L/min Maximum current:1.5 mA(DC 5V) Operating Temp:0-80C,Operating humidity:35%-90%RH Pressure range: 0.1-0.8MPa Storage Temperature:-25-80C Storage humidity:25%-95%RH Output Waveform:Square Wave,output pulse singal. ROHS Compliant. Cable length:15cm. Note:The thread is BSP, if used for NPT, need thread seal tape.