The OTH4000 series offers a range of 2-wire line voltage thermostats that provides great energy savings over conventional thermostats. Perfect to control baseboards, radiant ceilings, convectors or fan-forced heaters, these thermostats electronically measure the amount of heat required to maintain room temperature setting precision within ± 0.5°C. The digital screen displays room temperature at all time SPECIFICATIONS Color : White Full Load Current : 16.7 A Temperature Settings per Day : 41 to 86 deg F Thermostat Type : Non-Programmable Type : 2-Wire Proportional Pulsing Voltage Rating : 120/208/240 V AC FEATURES 10 min cycle (fan-forced convector) or 15 s cycle (convector) Digital screen with white LED backlit (except OTH5007) Display fan-forced heater mode and keypad lock (when activated) Choice of temperature display format(deg C or F) and for programmable thermostats, time format (24 hr or 12 hr) Temperature set points recorded permanently in case of a power outage Ability to set minimum and maximum set points Night light mode for the display LED (except OTH5007)