Function > Manufactured by alloy , the first stylish and dynamic decorative shell in the front. > International recognized lock tongue institutions of electrical transmission mechanism promise that the locks can be opened more than 500,000 times. > Locks are atomaticlly issue card, so it is no need of computer management. And the locks also atomatically delete, modify the guests card through card manging; > Using a single card or dual cards (guests' card together with the management card can open the door) to open the door is achieved. > Data processor built in locks can be at any time modifiedthe right of use, and it is easy to manage. > Lock tongue is of tamper-resistant, anti-inserted alarm functions. > Having undervoltage alarm function. > Adopting the sensing IC card, as a key card, which is dust-proof, waterproof, anti-high-temperature, and can be made as a watchband style cassette in the wrist, then it is very easy to use and to improve the quality of the sites. Parameters > Induction operating frequency: 125 KHz to 13.56MHz > Applicable Card: T5557 Mifare one Em card > Sensing range :3 to 5 CM > Voltage: four sections of 1.5V alkaline batteries > Battery Life:open the door>10,000times normally, still open 150 times after the alarm of undervoltage > Alarm Voltage: 4.8 V > Static power consumption: <5 microamps > Dynamic power consumption: <200 microamps > Temperature: 30 below to 80 > Humidity: <95 > Antistatic:>15.000 V, it still ensures the information not lost and stable work under the condition of strong static interference LOCK BODY