This is the large large battery box (uses six 1.5-volt "C" size alkaline batteries-user supplied) that can be used with LaGard locks that require external power.
There is also...
The battery/alarm interface box is designed to work with NL Locks DIA software to allow duress function when tied to facility alarm panel.
Cable is provided.
This is the standard external battery box for LaGard locks that require external power. It takes one 9-volt alkaline battery (user supplied).
Lagard also makes a large battery box (LG4001) that...