For keyed exterior doors. Plymouth exterior with interior Flair lever. Flex locking, switch between unlocked or automatic relocking. Unlocked by valid user code from outside. Inside lever always unlocked. Key can be used to unlock as backup. Dual option latch includes 1/4" round corner and 1" circular drive-in latch. Adjustable for 2-3/8" or 2-3/4" backsets. Strike: 1/4" round corner full-lip strike. Grade 2 construction for superior durability and quality performance. Lifetime mechanical warranty. 1 tool installation, 9V battery operation, 3 year battery life with low battery indicator. Large, easy-to-read numbers, lighted keypad. Store up to (19) 4-digit user codes. Silicon rubber buttons are epoxy-coated to prevent wear (won't show code pattern). Bright brass (505) finish. Visual pack