Water flow sensor is mainly consists of plastic valve body, rotor assembly and Hall Current Sensor.It is installed in the hot water inlet end for detecting water flow. When water through the flow rotor assembly, Magnetic rotor will rotate and Speed will change as the flow change.
eBay
【Facile da installare】: questi sensori di flusso dell'acqua sono progettati per essere plug and play e facili da installare. 【Compatibilità】: Questi sensori di flusso sono progettati per gli scaldabagni istantanei della serie NPE (A) e non sono compatibili con le serie NPE (S) e NTI GF200.
eBay
Gems Sensors 181681 RFI Water Flow Indicator, Fittings 1" NPT., Brass
eBay
It has a waterproof inline design with NPT thread connections, making it durable and easy to install.
eBay
◆If there are no special circumstances, your product will not be delayed in arrival.
eBay
Speed range. Temperature range. Simple structure, light and convenient. And bad weather or peak season could make it longer. LED backlight.
eBay
1. The Water Flow Sensor is light, nimble outline, small size and easy to install. All materials are in line with SGS testing standards.2. There is an integrated hall effect sensor that outputs an electrical pulse with every revolution. The hall effect sensor is sealed from the water pipe and allows the sensor to stay safe and dry.3. Stable, high temperature, low water pressure start.4. Can use for Water heaters, credit card machines, water vending machine, flow measurement device.5. Three wire connection: Red for positive, black for negative, yellow for pulse signal. Specifications:Product Name: Water Flow SensorMaterial: Brass(Shell)Liquid Temperature: Not More Than 60CExternal Thread Diameter: G3/4Flow Range: 2-45L/minWorking Voltage Range: DC5VMax Current: 10mAMaximum Water Pressure: 1.
eBay