Mul-T-Lock NE12SB NE Series Sliding Bolt Padlock 1/2" Bolt Keying (optional):Keyed Different (2 keys per lock) the B-3500 weighs 135 lbs

the B-3500 weighs 135 lbs

Outside knob is always fixed

Mechanical & Electronic access in one key

Lost or stolen keys can be blacklisted so they will not function

Battery failure override using external 9V battery

Mul-T-Lock NE12SB NE Series Sliding Bolt Padlock 1/2" Bolt Keying (optional):Keyed Different (2 keys per lock) the B-3500 weighs 135 lbsPart No: MTL NE12SB MT5 MTL800 The new MT5+ MTL800 features not only a double sided flat key but also 3 active locking mechanisms: The locking bar mechanism is one of the three technologies featured in the MT5+. Correct alignment of the top bar pins depends upon the correct combination key being inserted. The new generation product is also based on a new configuration of Mul t lock's well honed telescopic pin technology. The tip of the key has a