THÔNG SỐ KỸ THUẬT:
| Model | QA31 |
| Power | 9V battery |
| Sensitivity Setting | Comply to EN14604 |
| Indicator | Standby: flash every 45 seconds Alarm: flash and beep continuously Battery abnormal: beeps and flash intermittently |
| Sound | 90dB / M and above |
| Ambient Temperature | -10°C ~ +55°C |
| Material | Fire-proof plastic |
| Dimensions | 105mm(Dia.) x 40mm(H) |
| Weight | About 150g |
| Color | White |
| Optional Function | Type 1 : 9V battery Type 2 : includes signal transfer COM. N.O. N.C. Type 3 : build-in 110VAC or 220VAC plug Type 4 : Type 2 + Type 3 |
