Check the listing for details. PRO1 IAQ T855 Digital Programmable Thermostat, 3 H/2 C Universal. Condition: New. Listed at 92.99 USD. PRO1 IAQ T855 Digital 7-Day or 5/1/1 Programmable Thermostat, 3 Heat - 2 Cool, Universal Residential/Light CommercialProducts usually ship within 1 business day.7 Day or 5/1/1 programmableAuto ChangeoverEasy menu driven programmingIntuitive wake, leave, return, sleep programming icons8 sq. inch displayBlue back-lightGlow in the dark light buttonProgrammable fanElectric or gas configurableRoom temperature calibration adjustmentsSeparate heating and cooling swing (cycle rate) adjustmentsKeypad lockoutHeating and cooling setpoint limits5 minute compressor delay protection (selectable on or off) Filter change indicator (selectable on or off)Simple private label badge systemEasy wire color coded terminal blocksUniversal sub-baseMounts on wall or junction boxBattery or 24v power SpecificationsThe display range of temperature: 41˚F to 95˚F (5˚C to 35˚C) The control temperature range:44˚F to 90˚F (7˚C to 32˚C)Load rating:1 amp per terminal, 1.5 amp maximum all terminals combinedDisplay accuracy:± 1 °FSwing (cycle rate or differential):Heating is adjustable from 0.2°F to 2.0°F - Cooling is adjustable from 0.2°F to 2.0°FPower source:18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire (common wire) Battery power from 2 AA Alkaline batteriesOperating ambient:32° to +105° (0° to + 41°C)Operating humidity:90% non-condensing maximumDimensions of thermostat:4.7"W x 4.4"H x 1.1"D