See how to install the SDC's QuietDuo™ LR100DMK Kit into a Dor-O-Matic Exit Device for electrification.
More product information: https://sdcsecurity.com/LR100-QUIET-DUO-ELR-Kit.htm
More product information: https://sdcsecurity.com/LR100-QUIET-DUO-ELR-Kit.htm