Speedback Thermostat with additional features including manual override switch and an energy-saving extra circuit for automatic 4°C reduction of room temperature in periods of low use. Can be used in conjunction with Set-Back Timer (Quote 31434) or 4 Channel Programmer (Quote 50691). Technical Help available on 01895 425333. Specifications: 240V. 0-30?C. L x W: 85 x 85mm. Use 3-core cable for standard operation and 4-core for set-back functions.