- 0.8" LED display
- Built-in microphone & speaker
- Working voltage: 11~15V
- Static current: 20mA (12V)
- Working current: 150mA
- Dial method: Audio / Pulse, jumper selection J1
- Alarm Mode: N.C., N.O. and voltage signal jumper selection J2 and J3
- Recording Duration: 20 seconds, telephone numbers and audio information remain intact even if the power is off
- Telephone Number Storage: 4 groups of telephones and each group is able to save as long as 16 digits
- Second-level Private Password: 0-6 digits Private Password, and the first three digits can be used to stop alarms and the whole (six digits) can be used to modify the settings
- Default Password: 911
- Power cable length: 66cm
- RJ11 cable length: 131cm
- Comes with installation screws & manual