Pro1 T721 Thermostat




   Heat Pump
   2 Heat 1 Cool
   Battery or Hardwired 






  • 4 sq. inch display

  • Blue backlight

  • Glow in the dark light button

  • Easy access battery compartment

  • Electric or Gas configurable 

  • Separate heating cooling swing (cycle rate) adjustments including 2nd stage adjustments 

  • Filter change indicator (select-able on or off)

  • 5 minute compressor delay protection (select-able on or off)

  • Room temperature calibration adjustments

  • Simple private label badge system

  • Easy wire color coded terminal blocks

  • Universal sub-base

  • Mounts on wall or junction box

  • Battery or 24V power

  • 5 year warranty


T805 Installation Manual T805 Operation Manual







800 Family Brochure Pro1 Linecard



T721 Thermostat
The display range of temperature 41°F to 95°F (5°C to 35°C)
The control range of temperature 44°F to 90°F (7°C to 32°C)

Load rating

1 amp per terminal, 1.5 amp maximum all terminals combined
Display accuracy ± 1 °F 
Swing (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°F 
Power source 18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire (common wire) 
Battery power from 2 AA Alkaline Energizer batteries 
Operating ambient

32° to +105° (O° to + 41°C) 

Operating humidity

90% non-condensing maximum

Dimensions of thermostat

4.7"W x 4.4"H x 1.1"D