nest Protect Combination Smoke and Carbon Monoxide Detector, Battery, 120 V, Split‑Spectrum Sensor, 20 ft Detection Range, Horn Alarm, 85 dB Sound Level, 40 to 100 deg F, White, 1.6 in Width, 5.3 in Height, 5.3 in Depth
| Alarm Type | : | Horn |
| Color | : | White |
| Depth | : | 5.3 in |
| Detection Range | : | 20 ft |
| Height | : | 5.3 in |
| Power Source | : | Battery |
| Power Supply | : | 120 V |
| Sensor Type | : | Split���Spectrum |
| Sound Level | : | 85 dB |
| Temperature Rating | : | 40 to 100 deg F |
| Width | : | 1.6 in |