Alarm Lock Systems Inc. DL2700IC US26D Trilogy Digital Lock T2 Cylindrical Ic 26D, Satin Chrome In an hour, add dependable wireless access control, one door at a time-easily retrofit standard knobsets Support 100 to 2000 pin codes (3-5 or 6 digits); some with built-in hid prox readers for use with access id cards/fobs Multi-level user codes & one-time service codes. Free passage, group- or total lock-out modes, too Pc programmable models also feature printable audit trail, auto-lock/unlock scheduling saving guard/manpower costs Non-handed cylindrical models and programmable relay functions with curved regal handle option Small format IC prep. Core not included In an hour, add dependable wireless access control, one door at a timeeasily retrofit standard knobsets Support 100 to 2000 PIN codes (3-5 or 6 digits); some with built-in HID prox readers for use with access ID cards/fobs Multi-level user codes &amp; one-time service codes. Free passage, group- or total lock-out modes, too All are fingertip programmable at vandalproof all-metal keypad PC programmable models also feature printable audit trail, auto-lock/unlock scheduling saving guard/manpower costs Long-life battery operation (cylindrical models use 5AA off-the-shelf batteries); low battery alert Key override, standard core (supplied) or interchangeable core prep Non-handed cylindrical models Programmable relay functions Weatherproof models -31 to +151F (-35 to +66C) Curved Regal handle option