Features Easy Installation for Convenience: This lightweight and compact design ensures a hassle- setup, allowing you to quickly integrate it into your system without any complications Waterproof and Design: Featuring a waterproof structure to prevent water ingress, the robust materials ensure long-lasting performance even in demanding environments Clear Color-Coded Wiring: The three-wire connection—red for positive, black for negative, and yellow for pulse signal—provides a straightforward installation process with easy identification Features: 1、EASY TO INSTALL: Hall sensor is light weight, small size, provide simple installation, easy to carry and use 2、WATERPROOF AND WEAR RESISTANT: Hall component adopt waterproof design to prevent water ingress, good quality material is inlaid inside the impeller, and wear resistant 3、THREE WIRE CONNECTION: Red is positive, black is negative, yellow is pulse signal, different color is clear for you to distinguish 4、WATER SWITCH: The water sensor is applied to the water heater and can be used as a switch, useful and practical 5、IMPACT STRENGTH POM: Made of good quality POM material, has good fatigue resistance and impact strength, good creep resistance Specification: Item Type: Hall Sensor Material: POM Interface Size: G3/8 pipe Voltage Range: DC3.5-24V Inner Diameter: Approx. 5mm / 0.2in, Outer Diameter: Approx. 9.5mm / 0.37in Range: 0.3-10L/min Pulse Frequency: F=(10xQ)±5% Withstand Voltage: ≤1.75map Output Pulse High Level: ≥DC4.6V (input voltage DC5V) Output Pulse Low Level: ≤DC0.5V (input voltage DC5V) Maximum Operating Current: 15mA (DC5V) Operating Temperature Range: ≤80℃ Package List: 1 x Hall Sensor Note: betweendiv>1. The installation should follow the direction on the back of the product, otherwise there will be no signal output.between/div>betweendiv>2. A filter must be installed at the entrance of the sensor to prevent particles and debris from entering the sensor.between/div> Package List 1 x Hall Flow Sensor