7 Day Programmable Digital Thermostat7 Day Programmable Room Thermostat24 or 7 Day Programmable6 Time/Temperature Events per DayPermanent, Timed and Temporary Override FeaturesPre- Programmed Schedule Ready for UseElectronic Sensor for Accurate and Responsive PerformanceTPI (Time Proportional & Integral) Control for Heating EfficiencyOptimum Start/ Delay Start and Optimum Stop for Additional EfficiencySummer/Winter Time Change5°C to 35°C Set Temperature Range0.5°C and 1°C Temperature Swing AdjustmentFrost Protection3A Contact Rating (Volt Free)Technical Specification:Power Supply: 4 x AAA BatteriesOperating Temperature: 0°C to 50°CCurrent Rating: 3ASwitching Differential: +/-0.5°C or +/-1.0°C selectableSet Temperature Range: 5°C to 35°CTemperature Accuracy: +/-1°CTemperature Display Range: 0°C to 50°CFrost Protection: Yes; 5°CTPI (Time Proportional & Integral) Control for Heating Efficiency: YesOptimum Start/ Delay Start and Optimum Stop for Additional Efficiency: YesProgramming Schedu