The Timeguard TRT037N Wireless 7Day Programmable Room Stat offers wire-free installation from the thermostat location to other central heating controls. It transmits time and temperature programs automatically up to 60 meters away, depending on the installation. The product comes complete with a surface mount receiver box and features 7-day time and temperature programming with digital accuracy. It includes a pull-down flap concealing setting buttons, easy +/- illuminated push-button setting, and an easy view 12-hour AM/PM clock/time & temperature display illuminated on setting. The temperature range is adjustable from 10ºC to 35ºC in 0.5ºC steps. The burner symbol display shows on call for heat, and there is a frost protection setting and an optimum start feature. The product is surface-mounted with a wall plate included and has a 3-wire connection with voltage-free contacts. The display is battery-powered using 2 × 1.5V AA batteries supplied. The product has a current rating of 3 (1) A at 230V. Key features of the Timeguard TRT037N include automatic transmission of temperature and time programs, 6 different time and temperature periods to choose from, a switch type of Single Pole, Double Throw (SPDT) for both heating and hot water, set temperature range of 10ºC to 35ºC adjustable in 0.5ºC steps, easy-to-use + and - illuminated push buttons, micro disconnection Type 1.B Control Action, and dimensions of Height 90mm, Width 135mm, Depth 30mm. The transmission range is 60 meters. The Timeguard Programable Controller TRT037N 7 Day Wireless Programmable Room thermostat operates within a temperature range of 0ºC to 50ºC and at an operating voltage of 230V AC-50Hz.