Power supply : DC 12V.
SL-300/SL-320:Fail-secure type ( Power to unlock) / SL-300F/320F:Fail-safe type (Power to lock).
Suitable for wooden , aluminum and hollow metal doors.
To be used with auxiliary lock.
SL-300/300 : 160mm(L) x 25mm(W) x 31mm(D)
SL-320/320F : 124mm(L) x 32mm(W) x 38mm(D)