● Large LCD screen, attractive design ● Easy to programme and install ● Protected memory, no batteries required ● Fahrenheit and Celsius temperature mode selectable ● Comfort/Economy/Vacation set-point selectable ● 4 daily programmes with separate 7 day settings ● Clock display ● Week day display ● Energy saving ● Backlit(optional) Supplied with floor sensor ● AE-Y309-A：This model is designed to control a room's ambient temperature with one temperature sensor located in the control module. The sensor detects the room temperature, when the room temperature reaches the set-point, the heating system will be closed. ● AE-Y309-AF：This model is designed to use a floor sensor to control the room temperature. The model has two temperature sensors. One is a built-in sensor located at inside of the thermostat, controls the ambient temperature. The other one is installed in the floor (and connected to the power base) to detect the floor temperature. ● AE-Y309-F：This model is designed to control floor heating systems. It has one temperature sensor installed in the floor (sensor is connected to the power base). When the floor temperature reaches the set-point, the heating system will be closed. ● Temperature display scale: < 0.5 C ● Set-Point Range: 5~35 C ● Accuracy: +1 C ● Max. Load: 3500W(5500W optional) ● Power Supply: 220V AC + 15% 50/60Hz 110VAC/24VAC optional ● Housing: Anti-flammable ABS ● Agency Approval: CE compliant