CalAmp LMU-900

CalAmp LMU-900 is a great GPS tracker for small 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, 3-axis accelerometer, four inputs, and four outputs.

Protocol: calamp Manufacturer: CalAmp Forum discussion
Properties
Device Information
device_info
Generic device information.
firmware_version: Firmware Version
Properties
AT Command
at
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?"}