i-QE 7 Day Wireless Programmable Thermostat Receiver with Li-Ion Back-Up

iQE 7 day wireless programmable thermostat with mains powered receiver. Large display and intuitive user interface. Easy to set up and use. C-Stat uses a sophisticated integral (TPI) algorithm for accurate temperature control and energy efficiency. Automatic clock and BST/GMT time change. Holiday program. Features: 7 Day Programmable; 6 Target Temperature Settings per Day; Voltage-Free Contacts; TPI Temperature Control Software; Temporary Temperature Override; Frost Protection Setting; Tamperproof Security Code; Complete with 230V Wireless Receiver; Employs the Latest Z-Wave RF Technology. Specifications: Thermostat: Power supply: 2 x AA batteries. Temp. differential: 0.5C.Temp. accuracy: +/-0.5C at 21C. Transmitter frequency: 868MHz. Receiver category 3. Power class B. IP30. Pollution degree 2. Insulation class II (double insulated). Software class A. 2B control. Temp. range: 0-40C. Receiver: Power supply: 230V 50Hz. Micro-disconnection contact. Voltage-free c/o contacts (SPDT) wiring configuration. Contact voltage rating: 230V AC 50Hz (30V DC). Contact current rating: 3A (1A inductive). Temp. differential: 0.5C. Temp. accuracy: +/-0.5 at 21C. Impulse rating: category II - 2500V. Transmitter frequency: 868MHz. Receiver category 3. Power class B. IP30. Pollution degree 2. Insulation class II (double insulated). Software class A. 2B control. Temp. range: 0-40C.