1 piece per order
4 AAA batteries required, but not included. The plug is 2.5mm. When your batteries lose all their power, you will need an external power supply to open the lock so you can change the batteries.
This is an Emergency External Power Supply for all Armstrong electronic products that have a plug port on the lock:
SDWC-MC001W, SDWC-004, SDWC-005, SDWC-006, SWDP-MC001W, SDWP-MC002W, SDWP-MC003W, SDWF-MC001, SDWF-MC002, SDGC-MC417, SDGP-MC417 and CL-01.
Part# - PS-002