Honeywell YERM5220R8321 RedLINK ERM and VisionPro Thermostat
- Wireless RedLink communication between condensing unit/compressor or boiler and thermostat.
- Eliminates the need to run additional wires to your equipment, for example, during a heat pump upgrade.
- Suitable for outdoor use.
- Temperature sensor terminals for outdoor temp sensors or indoor freeze protection.
- LEDs for easy installation checkout.
- May reduce damage to homes since wiring/drilling is eliminated.