Do you have a question about the Honeywell RTH221B and is the answer not in the manual?
Type | Non-Programmable Thermostat |
---|---|
Stages | 1 Heat/1 Cool |
Voltage | 24V |
Temperature Range | 40°F to 90°F (4°C to 32°C) |
Accuracy | ±1°F (±0.5°C) |
Backlight | No |
Display | Digital |
Power Source | Battery |
Compatibility | Single-stage heating and cooling systems |