Security：KP-3S
Wireless keypad, 2-way radio
| Power | AAA alkaline batteries x 2pcs. |
| Passwords | 10 sets, 4 digits for each. |
| Current Drain | 10uA @standby, 30mA @ RF operation |
| Estimated battery life | 2 years (@ operate 20 times/day) |
| Radio | 2-way communication. |
| Bracket slant angle | 7 degrees. |
| Size | 65 x 28 x 15 mm (Not including the bracket) |
| Weight (w/o battery) | about 120g |