Summit Security RV Compact Lock Keyless Entry System: ADDITONAL KEYS AND REMOTES AVAILABLE FOR PURCHASE. CONTACT US FOR MORE DETAILS. IMPORTANT: CHECK FOR PROPER FITMENT BEFORE PURCHASING. The opening for your door handle must be 3.75 inches tall, 2.75 inches wide, and 1.5 inches deep Secure your RV while not having to worry about loosing a key. Sleek design helps give your RV a modern look. Requires less space for width Over 1 million secure rolling codes Add up to 10 fobs per keyless handle Unlimited keyless handles per fob Front portion dimensions: 4.25" tall x 4.5" wide 1 year warranty against manufacturing defects Included Parts: (1) RV Keyless Lock (1) Set of Keys Installation Hardware (4) AA Batteries* (1) Remote Key Fob (1) 27A 12V Battery* *Pre-installed.