1, 2 or 3 relay outputs (all SPDT) Simple to programme Heating or cooling control Set point selection with digital input 230Vac power supply; 3VA power consumption Novel front panel fixing system and plug-in terminals Multiple unit set up using programming key Integral alarm buzzer on single 16A output versions Operating temperature range: -10 → 50 °C Accuracy: PTC ±3°C Dimensions: Fascia 81mm x 36mm; Panel cut-out 71mm x 29mm; Depth behind panel 58mm