Specifications
| Model | NQ3S |
| Power | 3V lithium battery |
| Sensitivity Setting | Comply to EN |
| Sound | 90dB / M and above |
| Ambient Temperature | 0°C ~ +50°C |
| Material | Fire-proof plastic |
| Dimensions | 110mm (H) x 102mm (W) x 38mm (D) |
| Weight | About 120g |
| Color | White |
| Model | NQ3S |
| Power | 3V lithium battery |
| Sensitivity Setting | Comply to EN |
| Sound | 90dB / M and above |
| Ambient Temperature | 0°C ~ +50°C |
| Material | Fire-proof plastic |
| Dimensions | 110mm (H) x 102mm (W) x 38mm (D) |
| Weight | About 120g |
| Color | White |
| Building Height | Area Covered |
| Under 4M | 150 M² |
| 4 ~ 20M | 75 M² |