Description: PERFECT DESIGN: The radiator thermostat is with LCD digital display screen with easy new added knob for simple settings. It is designed with two sections of AA batteries, which is a special valve using cooperatively with heating radiator for energy-saving supported.  USAGE:The radiator thermostat is compatible with most common radiator valves, easy to install without tools required or intervening the heating system. Stepless rotary knob, convenient to adjust and set, easy to operate. The boost function enables quick heating of radiator by opening the valve for several minutes.   PROGRAMMABLE: The required temperature can be adjusted through pre-programmed or individually customized heating and cooling operation. Seven days and six time period programming.  ADVANTAGE: Mini size and light weight, less space required, saving space. Energy saving setting can help save up to 30% of expenses.   APPLICATION: The connector is compatible with RA adapter, RAVL adapter and RAV adapter. It can be used for the temperature control of heating and central air conditioning in living room, bedroom, study, kitchen, bathroom, residence, shopping mall, hotel, etc.  Specification: Material: Plastic Size Chart: A(Thermostat): 97x59mm / 3.82x2.32inch B(Wireless Gateway): 60x60x10mm / 2.36x2.36x0.39inch Package Includes: A(Thermostat): 1xThermostat, 2xAA Batteries(Not included) B(Wireless Gateway): 1xWireless Gateway, 1xUSB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!