| Smoke Sensitivity | 2.66+/- 1.11% FT Obscuration (UL standard) |
| Detection Range | 50 foot rating for heat sensor |
| Start-Up Current | 70 μA Maximum |
| Alarm Impedance | For 2-wire models: 100Ω+3V max; 560Ω+3V max (red LED open circuit) |
| Reset Voltage | Less than 1 volt |
| Reset Time | Less than 1 sec |
| Alarm Indicator | Continuously emitting red light |
| Temperature range | -10°C to 50°C |
| Humidity | 0 to 95% RH, non condensing |
| Alarm Contact | For 4-wire: N/O or N/C Operation Form A: 1.0A@30VDC/0.5A@125VAC |
| Dimensions | 10mm (dia) x 46mm (ht) with base |
| Weight | 130g/set with base |
