Upgraded Single Cylinder RV Door Lock Whihe you and your family and friends are traveling or camping, this RV door lock can help you protect your valuables and let you have a safe and secure trip RV keyless entry door lock The designer has designed advanced programs, which will not freeze or crash. You can arbitrarily set 50 sets of passwords. Remote Control Remote control, more convenient for your children to operate, the range can be as long as 15m. One lock cylinder Chip and programupgrade, one key can open the panel lock and door lock,more convenient to use and more energy efficient. Package Include 1 x RV DOOR LOCK 2 x keys 2 x remotes 2 x hooks 16 x screws 2 x button batteries 2 x key panels 4 x batteries 1 x screwdriver 1 x reset pin Just fit lock openning size: 3.75”T x 2.75”W x 1.5''D FULL METAL, Shockproof and Waterproof 100% METAL update, silicone upgrade, and made from the toughest materials, this rv door lock is built to last and provides instant peace of mind during both travel and storage, which is the best solution for securing your valuables as you travel with loved ones in the family trailer or camper. How to lock the rv door ? Long press the lock key. What is the factory password? The factory password is 1234. How to turn off the button sound? Long press the button "1" to turn off the sound of the button, which can prevent noise to neighbors when used at night. What to do if I forgot the password? You can press and hold code reset （on the back）to reset to the factory password "1 2 3 4". How do I know if the remote control battery is empty? When you press the remote control button, the indicator light doesn't light up or the panel light weakens, you need to replace the battery.