Model No. Pictures Features OS-HL01 1. Material: Stainless steel 2. Color: golden, silver 3. Unlocking method: RF card + mechanical key 4. Reading card distance: ≦3cm 5.Door thickness: 35-75mm 6.Working temperature: -20 to 50 ℃ 7.Warranty: 2 Years Buy Now OS-HL02 1. Material: Stainless steel 2. Color: golden, silver 3. Unlocking method: RF card + mechanical key 4. Reading card distance: ≦3cm 5.Door thickness: 35-75mm 6.Working temperature: -20 to 50 ℃ 7.Warranty: 2 Years Buy Now OS-HL03 1. Material: Stainless steel 2. Color: golden, silver 3. Unlocking method: RF card + mechanical key 4. Reading card distance: ≦3cm 5.Door thickness: 35-75mm 6.Working temperature: -20 to 50 ℃ 7.Warranty: 2 Years Buy Now OS-HL04 1. Material: Stainless steel 2. Color: golden, silver 3. Unlocking method: RF card + mechanical key 4. Reading card distance: ≦3cm 5.Door thickness: 35-75mm 6.Working temperature: -20 to 50 ℃ 7.Warranty: 2 Years Buy Now Hotel accessories Energy Saver Switch Buy Now RFID CARD Buy Now DOOR BEll Buy Now DATA COLLECTOR TAG Buy Now ENCODER Buy Now WIFI CCTV Buy Now