Master Lock have become the first security specialised to unveil Bluetooth padlocks with keyless entry. Year on year the smart technology market continues to grow and develop new uses, now with the Master Lock 4400 & 4401 padlocks you can share access through mobile phones and have no need for numerous keys or sharing and changing combinations. There are many other features and benefits to be had also, including time limited access, logs of all activity, and they are available in different shackle lengths.

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