The T7770A through G are a family of direct wired wall modules for use with Honeywell Excel 600, 500, 100, 80, 20 (all fully programmable) and W7750, W7751, W7752, W7753, W7761 controllers. All models have a space temperature sensor, some models have setpoint adjustment, override with LED, and fan switch.
Honeywell Temperature Sensor, Series: T7770A, +/-0.2 deg C Accuracy, Sensing Element: 10 kohm NTC Thermistor, Standard 2 x 4 in/60 mm Dia Junction Box Mounting, Plastic, White, 3-5/32 in L, 5-1/32 in H, 1 in W, 45 - 99 deg F
| Accuracy | : | +/-0.2 deg C |
| Color | : | White |
| Height | : | 5-1/32 in |
| Length | : | 3-5/32 in |
| Material | : | Plastic |
| Mounting Type | : | Standard 2 x 4 in/60 mm Dia Junction Box |
| Sensing Element | : | 10 kohm NTC Thermistor |
| Series | : | T7770A |
| Temperature Rating | : | 45 - 99 deg F |
| Width | : | 1 in |