Compatibility With:Water flow sensor compatible with for , for Ranein, for , for , for , and for RV and gas . please double-check that your equipment is the same as the model listed. Construction:Made of high-quality plastic material for superior durability and environmental safety. Engineered to withstand high temperatures and abrasion, ensuring stable operation and long service life in all conditions Precise Detection:Precisely detects water flow changes in real time, enabling your water heater to respond instantly for a consistent hot water supply. Safe and reliable design prevents performance fluctuations Easy Installation:Easy to install in minutes,just remove the old sensor, torque the one, and enjoy plug-and-play convenience with no extra tools needed Color: Black Material: plastic Package Contents: 2 x water flow sensors 2 sets x accessories Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.