This High Security Electronic Sensor TM Card Lock for Sauna EM109-J has three flexible management modes: Master card management￡? guest card management and service card management mode. It??s suitable for enterprises￡? schools￡? bath￡? sauna center and other places.                                    Features            New and high qualityMade of high-quality material of aluminumEasy installationPower Supply: 4 x AA alkaline batteries (not included)Color: Golden                                                                                                Package Includes            1 x High Security Electronic Sensor TM Card Lock for Sauna EM109-J1 x Installation Accessories1 x Sauna Lock Hand