In order to suit the 4G T-Box & asset leasing financial risk control box using & testing, we have upgraded the GPS tracking platform www.999gps.net , With the newly upgraded CC888 communication protocol, all T-Box can be directly tested and used on the www.999gps.net tracking platform. Suitable T-Box models: CC-318 / 328 / 338 / 368 / 688. Lock / Unlock command can be send to the T-Box to control lock unlock door on the platform website & APP, it can be used to control and test T-BOX by emergency, so it is more easy & convenient for car rent car sharing ride sharing client to test T-Box samples. The new version of the 4G GPS tracker can also display the power and external working voltage (currently only models CCTR-800G-4G and CCTR-830G-4G that have used the new CC888 communication protocol), you can use the DEMO demo account 123456 password 123456 to log in www.999gps.net platform to try, you can also download and install the app, click the "DEMO" menu to enter the App experience. Scan the QR code or click the link on the homepage of www.999gps.net website can download and install the app. For other details, please contact our sales.