Sinotrack ST-915W

Sinotrack ST-915W is a vehicle and motorbike GPS tracker with a powerful battery, magnetic mount, and WCDMA 3G support. The device features geofencing, overspeeding alarm, shock alarm, voice monitoring, sleep mode, history route playback, 10000 mAh Li-Ion backup battery, IP65 water-resistant casing, and more.

Protocol: sinotrack Manufacturer: Auto Leaders Forum discussion
Custom command
Send custom command to device without waiting for response, Scheme: "*,,#". You have to specify payload only
payload: Payload string
Mileage query command S32