Features: The Thermostat Gas Water Heater Controller ensures precise temperature regulation with built in sensors, eliminating temperature fluctuations for consistent hot water supply in showers and household use. Crafted from waterproof plastic, this controller offer lightweight durability and seamless compatibility with most gas heater models for easy installation. Ideal for families with elderly members or children, simplifies operational while providing in humid bathroom environments. Perfect for modern homes seeking energy efficiency, the controller's smart standby mode reduces power consumption during inactive periods without compromising heating readiness. Upgrade your gas water heater with this controller that combines robust construction for year round bathing comfort. Specifications: Component:Plastic Size: Approx.5x7cm/1.96x2.75inch Package Includes: 1Pc Water Heater Controller note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.