Description:
 
The Alarm-D is a high security D-lock with integral alarm.

The Alarm-D boasts a 16mm shackle and comes with a high tech pick-resistant locking system.

The Alarm-D has a key replacement service. When you buy your Alarm-D, simply note down the number which comes attached to the keys on a metal tag. Keep this in a safe place, then in the event that you are unfortunate enough to lose all your keys, it will be possible to get a new key made up for you.
 
Loud 120dB alarm siren
16mm ⌀ shackle
3 x high security keys
Long-life Lithium CR2 battery