This programmable wireless RF controlled room thermostat set consists of a transmitter (TH-920D) and a receiver (RV-0356 - either Volt-free or Volt-output) with 30 metre range. A unique facility called RF Address Code Setting is built into the RF receiver as part of the commissioning procedure. This ensures that the receiver will only respond to instructions sent to it from transmitter.Blue\/red LED backlit keys and screen. 3 separate working frequencies. Transmitter is powered by 4 x AAA batteriesProgram Duration = 2 (Weekends) days, 5 (Weekdays) days, 7 daysAdditional Features = Backlight, R\/F Address Code, WirelessContact Rating = 16AContact Voltage = 1.5 V, 250 V acSupply Voltage = 230 V acMaximum Temperature = +35 °CMinimum Temperature = +5 °CTemperature Range = +5 - +35 °C

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