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LGT-92 LoRa GPS Tracker User Manual
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Fixed and uplink
BLUE
blinks twice (200ms per blink)
Yes
N/A
Fail Fix and uplink
RED
blinks twice (200ms per blink)
Yes
N/A
Enter Alarm mode
RED
on five seconds
N/A
N/A
Uplink under Alarm
RED
on one second
Yes
N/A
Exit Alarm
BLUE
on one second
Yes
N/A
Downlink Modify
TDC
GREEN
led on 1 second
Yes
N/A
Movement Detect
RED
on 500ms
N/A
Yes
2.6
Button Function
RESET button:
Press this button will reboot the device.
RED button:
When keep pressing the Alarm button for more than 3 seconds, the tracker will immediately send an
empty
uplink packet (lat/lon will be all 0x00 in this very first packet to save GPS positioning time) then send a second
packet with GPS fix info. After that, the device will send 60 packets with 1 minute interval. The Alarm flag in the
payload will be set for the next 60 packets unless use downlink to exit the Alarm mode.
2.7
USB Port Function
The USB interface of LGT-92 has below functions:
Power on the device
Recharge the LGT-92 battery
Upgrade the firmware of LGT-92
2.8
Firmware Change Log
