CalAmp LMU-1200

CalAmp LMU-1200 is a great GPS tracker for basic fleets, automotive insurance companies, and also to find stolen vehicles, optimize vehicle overhead, equip rented autos, etc. It features a super-sensitive GPS technology on GSM/GPRS/CDMA 1xRTT/HSPA, an internal 1000 mAh backup battery,  3-axis accelerometer, four inputs, and four outputs.

Protocol: calamp Manufacturer: CalAmp Forum discussion
Device Information
Generic device information.
firmware_version: Firmware Version
AT Command
Send custom AT command to device
payload: Command to send, after AT
Query Current IP Address
{"payload":"$APP ADDR?"}
Query Current Output States
{"payload":"$APP OUTPUT?"}