Heat Resistant & Pressure Resistant: Water flow hall effect sensor switch is waterproof, heat resistant, pressure resistant, cold resistant, durable in use. Safe & Reliable: 1-60L/min flow range, DC 5-18 V maximum working voltage range and 1.75 Mpa below water pressure, safe and reliable. Output Waveform: Square wave, output pulse signal, high sensitivity, quick action. Easy to Install: G1/2" standard connection, easy to install and convenient to use, compact size, premium material and professional manufacturing. Wide Application: Water flow hall effect sensor switch is widely applicable for water control machine, water dispenser, water boiler flowmeter, shower room garden irrigation flowmeter.