JT709BL Intelligent bluetooth padlock is developed on the basis of our existed product model JT701. JT701 work as the master lock, and the JT709BL works as the slave lock, and they are suitable to the management applications, such as: container / oil tanker, one master muti slave lock (muti doors / valves). Device is with feature: configuring parameters online,  rechargeable lithium battery, reusable, get high precise tracking data through master part JT701. At the same time, It can support unlocking in remote online or on site offline, and running in different monitoring platform, real time tracking online, history route replaying, lock status tracking. This can provide asset tracking and management solution with lower cost, higher security, higher efficiency, more intelligent.