1.Single card unlocking or double card unlocking both available(guest card , service card, guest code, servide code)
2.With rebound function
3.Low voltage alarm function – if the voltage lower than 4.8V
4.Card in plastic wristband or watchband – waterproof, moisture proof, anti-corrosion.
5.Jimmying resistance function – when unlocking abnormally, the lock will alarm.
6.External power supply for emergency unlocking.
7.Unlocking method: EM card unlocking + code