Aube (a Honeywell Company) Programmable Heat Only Thermostat for Floor Heat - 240V / Double-Pole- 4 Wires. This thermostat has two modes of operation. Floor Mode - controls and displays the floor temperature using an external temperature sensor (included). AF Mode - controls and displays the ambient air temperature and maintains floor temperature within desired limits using external temperature sensor (included). Features: Electronic precision temperature control. 7 day programmable - maintain the pre-set program schedule for up to 20% energy savings, or modify the schedule to fit your lifestyle. "Early Start" mode can be used to calculate optimal time to start heating in order to obtain the desired temperature by the set time. Large, clear, backlit display - easy to read in various lighting conditions. Soundproofed for quiet operation - reduces the clicking noise commonly heard with conventional thermostats. Heating indicator - at a glance confirmation that the heat is on. On/Standby switch allows you to turn the thermostat off at the end of the heating season. Includes Built-In GFCI Includes floor sensor with 15 foot cord Maintenance free - no batteries required. 3-year limited warranty. Specifications: Description Line Volt Electric Heating (Ambient and Floor) Manual Thermostat with 15 mA Class A EGFPD Application Radiant floor Mounting Vertical Color White Power Method Hardwired Electrical Connections 6 in. (150 mm) tinned copper lead wires Switch Positions (System) °C/°F Switch Positions (System) AF (ambient+floor)/ F (floor only) Switch Type Epoxy-soundproofed relay Switching Action DPST Accuracy (F) 0.9 F Dimensions (in.) 4.9 in X 2.8 in X 0.9 in Setting Temperature Range (F) 40 F to 86 F ambient Setting Temperature Range (F) 40 F to 104 F floor Differential Temperature (F) 1 F Electrical Ratings Max. 3600 W @ 240 VAC, 15 A Frequency 50 Hz Frequency 60 Hz Cycles per Hour 4 Sensor Element Thermistor LEDs On EGFPD test button Minimum Temperature Setting (F) 40 F (floor & ambient) Maximum Temperature Setting (F) 86 F ambient Maximum Temperature Setting (F) 104 F floor Ambient Temperature Range (F) AF mode: 32 F to 122 F Ambient Temperature Range (F) F mode: 32 F to 140 F Approvals, Canadian Standards Association Approved Includes Aube AC112-01 North American Sensor, 15 feet (4.6 m) or 50 feet (15 m) Voltage 240 Vac