TM electronic lock Professional Designs Power: DC4.5V, with 3 5 batteries (alkaline batteries recommended), has prompted the static voltage Power consumption: less than 6.7μA start current: less than 300mA effective lock time: 4 5 seconds Surface treatment: pre- lock the beach or the Norwegian gold, silver paint, 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% 90% before the lock Size: 115mm (high) × 40mm (width) × 19mm (thickness) after the lock size: 125mm (length) × 65mm (width) × 22mm (thickness) TM card: DS1990A bracelet: TPU green material, color: red, yellow , Blue Lock: 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