Upgrade your home security with this Sutinna Digital Code Lock – a reliable, battery-free mechanical deadbolt that offers keyless entry and a user-defined password combination. Made from waterproof zinc alloy, it resists weather and tampering, suitable for both interior and exterior doors. No batteries needed means no low-battery worries, and the simple 2-4 digit code setup lets you customise access. Ideal for front doors, garages, sheds, and offices, this lock provides convenient, secure entry without keys. Easy to install with the included hardware and manual.