Technical details
| Detector type |
Optical detector |
| Test button |
Y |
| Interconnectable |
Y |
| Maximum range |
3 m |
| Alarm decibels |
85 dB |
Power
| Power source |
Battery |
| Battery low indication |
Y |
| Battery voltage |
9 V |
| Number of batteries supported |
3 |
| Compatible battery sizes |
AA |
Additionally
| Wireless technologies |
Wireless |
Synergy 21 S21-RM003-ADDON. Power source: Battery, Battery voltage: 9 V, Compatible battery sizes: AA. Diameter: 12.8 cm, Depth: 49 mm, Weight: 500 g