| Accuracy | : | +/-2 deg F |
| Additional Information | : | R, W, Y Terminal |
| Color | : | Premier White |
| Cycles per Hour | : | Adjustable 1, 3, 5, 9 |
| Dimensions | : | 3-11/16 in Dia x 1-3/4 in D |
| Frequency Rating | : | 50/60 Hz |
| Heat Current | : | 0.02 to 1 A |
| Humidity Rating | : | 5 to 90% Relative Non-Condensing |
| Sensing Element | : | Thermistor |
| Stages | : | 1 Heat |
| Switch Type | : | Relay |
| Temperature Settings | : | 40 to 90 deg F |
| Voltage Rating | : | 20 to 30 VAC |
Honeywell Home Round Thermostat, 20 to 30 VAC, 50/60 Hz Frequency, 1 Heat Stages, Relay Switch, Thermistor Sensing Element, 40 to 90 deg F Settings, 5 to 90% Relative Non-Condensing Humidity, Cycles per Hour: Adjustable 1, 3, 5, 9, +/-2 deg F Accuracy, Heat Current: 0.02 to 1 A, Dimensions: 3-11/16 in Dia x 1-3/4 in D, Premier White, Additional Information: R, W, Y Terminal
- Mercury-free
- Classic styling
- The T87K heat only works with 2 or 3 wire heat-only systems