Mechanical password operationKeyless entry door lockSuitable for left and right doorsHeavy-duty, all-weather keyless entry systemNo battery or external power supply or any circuit requiredfeature:Use code presets (can be changed-see instruction manual)Code is required for all entriesNo backup key provided-please remember your password to avoid being lockedHeavy-duty, commercial-grade quality for maximum safetys100% mechanical operation is both reliable and No battery or external power supply requiredAll-weather design, can be installed in any locationIncludes complete installation hardwareDetailed installation guide and operating instructionsSurface treatment: dyed nickelSame size of front and rear panelsSuitable for door thickness: 35-60mmPremium- commercial gradeThe project includes:1 x R-408A front panel1 x R-408A rear panel1 x Mortise lock2 x Neoprene seals1 x Anti-collision board1 x bumper box1 x installation kit1 x English user manualNotice:1. Due to manual measurement, please allow 2-3% error.Before you bid, make sure you don't mind.2. The color may vary from different monitors, please refer to the actual product.Support virtual password.