JC400

The range is 0~6 defining the voltage is from low to high.
0: No Power (shutdown)
1: Extremely Low Battery
2: Very Low Battery
3: Low Battery
4: Medium
5: High
6: Very High

GSM Signal Strength Levels
0: no signal;
1: extremely weak signal;
2: very weak signal;
3: good signal;
4: strong signal.

Bitmask representing different terminal statuses.
Bit7
1:Oil/Electricity cutoff
0:Oil/Electricity on
Bit6
0: GPS tracking is off
1: GPS tracking is on
Bit3~Bit5
Extended bit
Bit2
0: Charge Off
1: Charge On
Bit1
1: ACC high
0: ACC Low
Bit0
0: Disarm
1:Arm

1: ACC high
0: ACC Low

Data Upload Mode:
(could be only one mode available)
0 upload by time interval
1 upload by distance
2 upload for corner correction
3 upload by ACC status change
4 Re-upload last valid locating point after shift from dynamic motion to static position
5 Report last valid locating point after network reconnected.
6 Update the ephemeris to upload locating point.
7 Press to upload locating point
8 Power on to upload locating point
9 Power on and change locating point by GPS based station.
14 GPSDUP (upload at fixed time under static state or GPS not fixed)

Type - Value

Login Message - 1 (0x01)

Status information (Heartbeat) - 19 (0x13)

Location Data Packet - 34 (0x22)

Alarm Data Packet - 149 (0x95)

Command information sent by the server to the terminal - 128 (0x80)

ID of the fuel sensor

Value of the fuel sensor

Units for fuel sensor value:
01 - Height
02 - Percentage
03 - Voltage

External battery voltage