Honeywell TH4210D1005 Thermostat

PRO 4000 Programmable Thermostat, 2H/1C


Brand: Honeywell

Mfr Part#: TH4210D1005

UPC#: 085267261203

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$37.95 / each
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Honeywell TH4210D1005 Programmable Thermostat for 2 Heat/1 Cool Heat Pump Systems.

Honeywell PRO 4000 Thermostat features an easy-to-read display and 5-2 day programming. Honeywell PRO 4000 series offers a basic thermostat with the benefits of energy savings.



  • Weekday/Weekend programming - 5-2 (Weekdays, Weekend) programming;
  • Backlit digital display - both current and set temperatures are easy to read in various lighting conditions;
  • Precise comfort control (+/-1F) - maintains consistent comfort to the highest level of accuracy;
  • Basic operation - easy-to-use slide switches allow you to select the heat or cool mode, and operate the fan;
  • Built in instructions - simple, pull out instruction manual;
  • Adaptive Intelligent Recovery - ensures programmed temperature is reached by programmed time;


Technical Specifications of Honeywell TH4210D1005:

  • Programmability: 5-2 Day Program;
  • Changeover: Manual;
  • Color: Premier White;
  • Switch Positions (System): HEAT-OFF-COOL;
  • Switch Positions (Fan): AUTO-ON;
  • Power Method: Dual Powered: Battery or Hardwire;
  • Terminal Designations: R, Y, AUX, E, G, O, B, L, C;
  • Dimensions: 3 13/16" High X 5 3/8" Wide X 1 1/4" Deep;
  • Mounting: Horizontal;
  • Electrical Ratings: 20 to 30 Vac or 750 mV;
  • Frequency: 50 Hz;
  • Frequency: 60 Hz;
  • Setting Temperature Range: Heat: 40F to 90F; Cool: 50F to 99F;
  • Differential Temperature: +/- 1F;
  • Stages: 2 Heat/1 Cool Heat Pump;
  • Sensor Element: Thermistor;
  • Heat Current: 0.02 A to 1.0 A running;
  • Cool Current: 0.02 A to 1.0 A running;
  • Operating Humidity Range (% RH): 5 to 90% RH, non-condensing;
  • Display Size: 1.73 sq inch;
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