RF electronic lock Professional Designs Power: DC4.5V, with 3 5 batteries (alkaline batteries recommended), has prompted the static voltage power: less than 15μA startup current: less than 300mA effective lock time: 4 5 seconds Surface treatment: pre-lock Norwegian beach silver or gold body paint done and made light curing light; the beach after the lock corresponding to finish of gold, silver or Norway Environmental requirements: Temperature: -20 °C 55 °C Humidity: 20% 98% before the lock body size : 100mm (length) × 44mm (W) × 19mm (thickness) after the lock dimensions: 125mm (length) × 65mm (W) × 22mm (thickness) RF Card: EM4100/T5557/Mifare One Bracelet: TPU green material, color : red, yellow, blue locking: PC alloy, Color: Yellow and Black Note: e-locker lock, also known as: sauna lock, smart wardrobe lock, TM lock wardrobe, EM wardrobe lock, RF wardrobe lock