... lock 2.silver 3.6V 4.waterproof 5.panel size 282.8*74mm LS-2008 Door lock ... 9.Software Version in different languages;Size of panel:283*74mm, weight:3.5kg Technical Parameters: Model ... ≥30000 timesMechanical life≥300,000 timesBattery4 pieces of 5# normal battery (6V)Low voltage alarm level4 ... chain. Package:Our domestic projects for 4-5 Star hotelsCertificatesFactory and usDelivery termsDHL,UPS,EMS,sea ...