Water flow sensor flow meter Hall flow sensor Module Water control 1-30 L/min Description the lowest rated working voltage: DC4.5 5V-24V maximum operating current: 15 mA (DC 5V) working voltage range: DC 5~18 v load capacity: ¡Ü 10 mA (DC 5V) use temperature: ¡Ü 80 ¡æ operating humidity range: 35%~90%RH (no frost) allowing pressure: pressure 1.75Mpa temperature: -25~+80 ¡ã c External threads: 1/2" Package Included: 1 x Water flow sensor flowmeter Hall flow sensor Module Water control 1-30L/min