1[Programmable and Energy Saving] Programmable boiler thermostat, with multiple setting modes, which perfectly fits your weekly life plan and effectively saves energy. Designed for most wall mounted gas water heaters. 2[Blue Backlight and Real Time Display] The boiler thermostat with backlight has its own blue light, which is convenient for you to understand the display data in the dark. Support real time display of time and temperature. 3[Touch Button Design] The full touch screen is easy to operate, powered by two batteries (not included), and there is no need to install a power cord, so the digital thermostat can be directly connected to the heating boiler. 4[Convenient Installation] Dry contact is used, and there is no polarity, so the boiler thermostat is easy to install and does not require high installation technology. The short circuit problem of the dry contact wire will not affect the connected equipment. 5[Modern Appearance] Large screen and white simple shell, elegant and fashionable, widely used in bathroom, residence, shower room, bedroom, study, etc. In addition, its compact size does not take up too much installation space.