Meitrack T399L

Meitrack T399L is an advanced water-resistant LTE GPS tracker with Bluetooth support. The device features driving behavior analysis, Bluetooth temperature and humidity sensors and beacons sipport, 400 mAh battery, IP67-compliant casing, and more.

Protocol: meitrack Manufacturer: Meitrack Forum discussion
Properties
Custom GPRS command
custom_gprs
Send custom command to device via GPRS connection
parameters: Comma-separated parameters (optional)
command_type: 3 symbols command code
Real-Time Location Query via GPRS connection
{"command_type":"A10"}
Setting a Heartbeat Packet Reporting Interval to 10 minutes via GPRS connection
{"parameters":"10","command_type":"A11"}
Custom SMS command
custom_sms
Send custom command to device via SMS
password: 4 digit device password. Default is 0000
parameters: Comma-separated parameters (optional)
command_type: 3 symbols command code
Setting the Scheduled Tracking to 10 seconds via SMS with PIN=1234
{"password":"1234","parameters":"10","command_type":"A12"}