Product information Lowest rated working voltage: DC4.5 5V-24V Maximum operating current: 15 mA (DC 5V) Working voltage range: DC 5~18 v load capacity: ≤ 10 mA (DC 5V) Working temperature: ≤ 80 ℃ Operating humidity range: 35%~90%RH (no frost) allowable pressure: 1.75Mpa Storage Temperature: -25~+80 ° c External threads: 1/2" Application: water heaters, water vending machine, flow measurement device