Material: Stainless Steel, Moisture Proof, Fire Retardant • Stainless Steel • Moisture Proof • Fire Retardant • Battery Status 、Wrong Operation Indication • Interface with most of the PMS system, • CE & FCC Certified • Inside Deadbolt, the inside handle retracts latches and deadbolt. • Lost Guest Card suspension simply by issuing a new guest card with suspending function. • Low battery voltage warning • Self-Error detecting by “Beep” • Can be integrated with 16 public areas such as Lift/Parking/Swimming Pool/Sauna Room/Tennis Court/Gym...etc • (For Wood Door)