PRO1 IAQ T721 Digital Heat Pump Thermostat
$63.00 on Amazon.com (as of October 16, 2026, 6:29 PM EST) View details ↗
The PRO1 IAQ T721 Digital Non-Programmable Thermostat delivers precise climate control for homes with heat pumps, offering reliable heating and cooling performance without the complexity of programmable scheduling. Featuring a 4 sq. inch backlit display with glow-in-the-dark buttons, this thermostat ensures easy visibility and operation in any lighting condition. The clear, user-friendly interface allows for quick adjustments to both heating and cooling settings, including independent swing (cycle rate) controls for primary and secondary stages—ideal for fine-tuning comfort in multi-zone systems.
Designed for flexibility, the T721 supports electric or gas heating configurations with separate B (heating) and O (cooling) terminals, making installation straightforward for most HVAC setups. Additional smart features include a filter change indicator (configurable on/off), a 5-minute compressor delay protection (adjustable), and room temperature calibration for accurate readings. The easy-access battery compartment ensures minimal maintenance, while the durable construction meets the demands of everyday use. Whether you're managing a residential or light-commercial space, the T721 provides dependable, energy-efficient climate control with no unnecessary frills.
| Display Size | 4 sq. in. |
|---|---|
| Backlight | Yes (blue) |
| Heating Compatibility | Electric or Gas |
| Stage Control | Multi-stage (heating & cooling swing adjustments) |
| Compressor Delay Protection | 5-minute (adjustable) |
| Filter Change Indicator | Selectable (on/off) |






