The 2000 Deluxe model offers the security of 16-gauge steel and access codes that simplify entry. Key access is provided, in case you forget the code, and the added protection of a tamper-resistant feature temporarily locks the mechanism after five wrong codes are entered. The additional convenience of an interior courtesy light, motion detector with audio alarm, audio low-battery warning, external power connection jack make the Deluxe model a total protection package. Lined with protective foam. Operates on AA alkaline batteries (not included). (Security cable not included).