Security：MX-3DN
Mini door magnet
| RF signals | Open/Close, Battery Low, Heart beat @60 min., Power on Reset, Tamper/Restore (optional) |
| Tamper | Back tamper (Optional) |
| Power | one 3V CR-2450 lithium battery. |
| Current Drain | |
| Estimated Battery Life | 2.7 year (@ actuated 20 times/day) |
| Operating Temperature | -10~40℃, |
| Detector Size | 42 x 38 x 13.3 mm |
| Detector Weight | about 25g (with battery & magnet) |