Heavy-duty ABS shell with a four bolt, door locking mechanism. Double wall filled with cellular concrete. Electronic panel with LCD screen, accepts thousands of 6-digit codes. Also supplied with two emergency override keys. Offers up to 1hr fire resistance with UL approval. Batteries not included. Features & Benefits:Heavy-duty ABS shell with a four bolt, door locking mechanism.Double wall filled with cellular concrete.Wall/Door Thickness: 55/80mm.Electronic panel with LCD screen, accepts thousands of 6-digit codes.Also supplied with two emergency override keys.Offers up to 1hr fire resistance with UL approval.Batteries not included.Internal Size (W x D x H): 340 x 240 x 190mm.Model No. SCFS04 Specifications: Model No SCFS04 Brand: Sealey External Dimensions (W x D x H): 450 x 380 x 305mm Internal Dimensions (W x D x H): 340 x 240 x 190mm Nett Weight: 30.78kg Shelf Quantity: 0 Slot Size (W x H): n/a Thickness Wall/Door: 55/80mm