Program Your Ideal Schedule
This thermostat supports a seven day or 24 hour schedule with two or four events per day. You may override your schedule with a programmable scene at any time. The 521 can also follow master schedules as set by other devices.
The 521 Thermostat has auxiliary inputs for two additional sensors. You can control air and floor temperatures if you connect a slab sensor to your thermostat. A slab sensor is included to measure your floor temperature to avoid overheating.
- 521 Programmable Thermostat
- 079 Slab Sensor