... door lock system CE RF Recorder,Time recorder,PDA. To collect all the open door recorder,include who,at what time,use which card,to ... batteries, with lack of voltage indications. Static Power Supply 1u ADynamic Power Supply About 200mALifetime of battery For the allowed door open ... is resolved Motel IC card lock system.Hotel door lock,Smart card lock,electronic security lock,hotel safe,opera hotel lock ...