| Battery | 4 AA Sized Alkaline batteries (DC 6V, AA.LR6) | 
| Product Size (Including rubber pad) | Front Ass’y 74mm(w) x 184mm(h) x 23.7mm(d) Back Ass’y 164mm(w) x 97mm(h) x 38.7mm(d) | 
| Product Material | Aluminium and zinc Alloy diecasting, PC, PCABS | 
| Installation | Can be installed on a door with thickness 40-90mm Cannot be installed on glass surface and sash doors | 
| Fire Warning | Alarm sound when indoor trim senses temperatures of 60°C±10 | 
| Emergency Power | Contact 9V Alkaline battery (6LF22) on external emergency power terminal | 
| Product Color | Black |