MUTEX Mechanical 1 Keypad Lock – MX190G
This Mechanical keypad lock uses 6 digit passcode. With over 665,000 combinations, it provides robust security to your door. The lock is made of all metal and fully mechanical – No power source or battery is needed and both water and heat/fire proof.
It is extremely reliable. It can be used in all weather/environment conditions – Inside or outside, hot or cool, wet or dry environments.