The lock has a built in security system that activates the alarm if anyone tries to put something foreign into the lock for example - a wrong key.

• Corrosion resistant. Provides perfect security for your property.
• This high security design is rainproof, rust proof & weatherproof. It is ideal for garden sheds and houses, garages, caravans, bicycles, gates etc.
• The alarm resets automatically. Corrosion Resistant with hardened Zinc Alloy Body. Suitable for all weather conditions
• Simple to operate and easy to install. Heavy-duty, waterproof and very good quality.