Payload Format

Uplink Packet Parsing

The tracker data protocol provides different packets to correspond to different information, and the number of bytes of each packet may vary. The structure of the frame is shown in the image below. The frame content is sent in big-endian byte order.

Data ID	Data Value
1 byte	50 bytes (Max)

Data ID: Function number.
Data Value: Position, sensor data and other information.

Power-on Packet (0x27)

The power-on packet is sent by the device immediately after booting. It contains the current configuration parameters and device status. The frame ID is 0x27, and the total length is 46 bytes.

0x27	Byte2	Byte3~4	Byte5~6	Byte7	Byte8	Byte9~10	Byte11~12
ID	Battery Level	Software Version	Hardware Version	Work Mode	Positioning Strategy	Heartbeat Interval	Periodic Mode Uplink Interval

Byte13~14	Byte15	Byte16	Byte17	Byte18	Byte19~20	Byte21~22
Event Mode Uplink Interval	Enable 3-Axis Accelerometer	Enable Disassembly Alarm	GNSS Scan Timeout	Enable Motion Event	3-Axis Motion Threshold	Uplink Interval On Motion

Byte23	Byte24~25	Byte26	Byte27~28	Byte29	Byte30	Byte31~46
Enable Motionless Event	Motionless Timeout	Enable Shock Event	3-Axis Shock Threshold	iBeacon Scan Timeout (s)	UUID Filter Valid Bytes	UUID Filter (16 Bytes)

Raw Payload Example

27 56 0100 0101 01 08 02d0 003c 003c 00 01 3c 00 001e 0005 00 0168 00 012c 03 00 00000000000000000000000000000000

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	27	27 is the packet ID
2	Battery Level	uint8	56	0x56 = 86(DEC) The battery level is 86%
3~4	Software Version	uint16	0100	0x0100 = v1.0 The software version is v1.0
5~6	Hardware Version	uint16	0101	0x0101 = v1.1 The hardware version is v1.1
7	Work Mode	uint8	01	01 = Periodic Mode 00: Standby Mode 01: Periodic Mode 02: Event Mode
8	Positioning Strategy	uint8	00	07 = 0x07, means the device use Bluetooth + Wi-Fi + GNSS positioning strategy 00: Only GNSS 01: Only Wi-Fi 02: Wi-Fi + GNSS 03: GNSS + Wi-Fi 04: Only Bluetooth 05: Bluetooth + Wi-Fi 06: Bluetooth + GNSS 07: Bluetooth + Wi-Fi + GNSS 08: GNSS + Bluetooth
9~10	Heartbeat Interval	uint16	02d0	0x02D0 = 720 minutes
11~12	Periodic Mode Uplink Interval	uint16	003c	0x003C = 60 minutes
13~14	Event Mode Uplink Interval	uint16	003c	0x003C = 60 minutes
15	Enable 3-Axis Accelerometer	uint8	00	00: Disable 01: Enable
16	Enable Disassembly Alarm	uint8	01	00: Disable 01: Enable
17	GNSS Scan Timeout	uint8	3c	0x3C = 60 seconds
18	Enable Motion Event	uint8	00	00: Disable 01: Enable
19~20	3-Axis Motion Threshold	uint16	001e	0x001e = 30 mg
21~22	Uplink Interval On Motion	uint16	0005	0x05 = 5 minutes
23	Enable Motionless Event	uint8	00	0x00: Disable 0x01: Enable
24~25	Motionless Timeout	uint16	0168	0x0168 = 360 minutes
26	Enable Shock Event	uint8	00	00: Disable 01: Enable
27~28	3-Axis Shock Threshold	uint16	012c	0x012c = 300 mg
29	iBeacon Scan Timeout (s)	uint8	03	0x03 = 3 seconds
30	UUID Filter Valid Bytes	uint8	00	Number of valid bytes in UUID filter (0–16)
31~46	UUID Filter	16 bytes	0000000000000000 0000000000000000	16‑byte Bluetooth UUID filter. Only first N bytes (defined by byte30) are meaningful

Periodic Mode Packet (0x28)

The periodic mode parameters packet contains the current work mode configuration. The frame ID is 0x28, and the total length is 30 bytes.

0x28	Byte2	Byte3	Byte4~5	Byte6~7	Byte8~9	Byte10	Byte11	Byte12	Byte13	Byte14	Byte15~30
ID	Work Mode	Positioning Strategy	Heartbeat Interval	Uplink Interval	Event Mode Uplink Interval	Enable 3-Axis Accelerometer	Enable Disassembly Alarm	GNSS Scan Timeout	iBeacon Scan Timeout	UUID Filter Valid Bytes	UUID Filter (16 Bytes)

Raw Payload Example

28 01 07 02d0 003c 003c 01 00 3c 0a 10 00000000000000000000000000000000

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	28	28 is the packet ID
2	Work Mode	uint8	01	01 = Periodic Mode 00: Standby Mode 01: Periodic Mode 02: Event Mode
3	Positioning Strategy	uint8	07	07 = 0x07, means the device use Bluetooth + Wi-Fi + GNSS positioning strategy 00: Only GNSS 01: Only Wi-Fi 02: Wi-Fi + GNSS 03: GNSS + Wi-Fi 04: Only Bluetooth 05: Bluetooth + Wi-Fi 06: Bluetooth + GNSS 07: Bluetooth + Wi-Fi + GNSS 08: GNSS + Bluetooth
4~5	Heartbeat Interval	uint16	02d0	0x02D0 = 720 minutes
6~7	Uplink Interval	uint16	003c	0x003C = 60 minutes
8~9	Event Mode Uplink Interval	uint16	003c	0x003C = 60 minutes When no event is triggered, data will be uploaded every 60 minutes.
10	Enable 3-Axis Accelerometer	uint8	01	00: Disable 01: Enable
11	Enable Disassembly Alarm	uint8	00	00: Disable 01: Enable
12	GNSS Scan Timeout	uint8	3c	0x3C = 60 seconds
13	iBeacon Scan Timeout	uint8	0a	0x0A = 10 seconds
14	UUID Filter Valid Bytes	uint8	10	Number of valid bytes in UUID filter (0–16)
15~30	UUID Filter	16 bytes	0000000000000000 0000000000000000	16‑byte Bluetooth UUID filter. Only first N bytes (defined by byte14) are meaningful

Event Mode Packet (0x29)

The event parameters packet contains the motion, motionless, and shock event configuration settings. The frame ID is 0x29, and the total length is 12 bytes.

0x29	Byte2	Byte3~4	Byte5~6	Byte7	Byte8~9	Byte10	Byte11~12
ID	Enable Motion Event	3-Axis Motion Threshold	Uplink Interval On Motion	Enable Motionless Event	Motionless Timeout	Enable Shock Event	3-Axis Shock Threshold

Raw Payload Example

29 01 0064 001e 01 012c 00 012c

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	29	29 is the packet ID
2	Enable Motion Event	uint8	01	00: Disable 01: Enable
3~4	3-Axis Motion Threshold	uint16	0064	0x0064 = 100 mg
5~6	Uplink Interval On Motion	uint16	001e	0x001E = 30 minitues
7	Enable Motionless Event	uint8	01	0x00: Disable 0x01: Enable
8~9	Motionless Timeout	uint16	012c	0x012C = 300 minitues
10	Enable Shock Event	uint8	00	0x00: Disable 0x01: Enable
11~12	3-Axis Shock Threshold	uint16	0000	0x012c = 300 mg

Heartbeat Packet (0x2A)

The heartbeat packet is sent periodically by the device to report its current status. It contains basic device information and sensor states. The frame ID is 0x2A, and the total length is 6 bytes.

0x2A	Byte2	Byte3	Byte4	Byte5	Byte6
ID	Battery Level	Work Mode	Positioning Strategy	Enable 3-Axis Accelerometer	Enable Disassembly Alarm

Raw Payload Example

2a 56 01 07 01 00

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	2A	2A is the packet ID
2	Battery Level	uint8	56	0x56 = 86(DEC) The battery level is 86%
3	Work Mode	uint8	01	01 = Periodic Mode 00: Standby Mode 01: Periodic Mode 02: Event Mode
4	Positioning Strategy	uint8	07	07 = 0x07, means the device use Bluetooth + Wi-Fi + GNSS positioning strategy 00: Only GNSS 01: Only Wi-Fi 02: Wi-Fi + GNSS 03: GNSS + Wi-Fi 04: Only Bluetooth 05: Bluetooth + Wi-Fi 06: Bluetooth + GNSS 07: Bluetooth + Wi-Fi + GNSS 08: GNSS + Bluetooth
5	Enable 3-Axis Accelerometer	uint8	01	00: Disable 01: Enable
6	Enable Disassembly Alarm	uint8	00	00: Disable 01: Enable

GNSS Location Data Packet (Accelerometer On, 0x2B)

The GPS location data packet contains GNSS positioning data along with accelerometer and battery information. The frame ID is 0x2B, and the total length is 23 bytes.

0x2B	Byte2~3	Byte4	Byte5~8	Byte9~10	Byte11~12	Byte13~14	Byte15~18	Byte19~22	Byte23
ID	Event Status	Motion ID	UTC Timestamp	Accelerometer X	Accelerometer Y	Accelerometer Z	Longitude	Latitude	Battery Level

Raw Payload Example

2b 0100 00 694b3dc6 032f fffe 0241 06ca5098 01587ee4 62

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	2B	2B is the packet ID
2~3	Event Status	uint16	0100	0x0100 = disassembled event Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
4	Motion ID	uint8	00	0: Does not need to be recorded as a specific motion. 1~255: Positioning data reported under the same motion status (same ID refers to the same motion)
5~8	UTC Timestamp	uint32	694b3dc6	0x694B3DC6 = 1766538694(DEC) seconds Convert it to UTC Time: 2025-12-24 01:11:34
9~10	Accelerometer X	int16	032f	0x032F = 815 mg
11~12	Accelerometer Y	int16	fffe	0xFFFE = -2 mg
13~14	Accelerometer Z	int16	0241	0x0241 = 577 mg
15~18	Longitude	uint32	06ca5098	0x06CA5098 = 113,922,200 → 113.922200°
19~22	Latitude	uint32	01587ee4	0x01587EE4 = 22,576,868 → 22.576868°
23	Battery Level	uint8	62	0x62 = 98%

Wi-Fi Location Data Packet (Accelerometer On, 0x2C)

The Wi-Fi location packet contains Wi-Fi scan results along with accelerometer and battery information. The frame ID is 0x2C, and the total length is dynamic based on the number of Wi-Fi access points scanned (23 + (n-1) * 7 bytes, where n is the number of MAC-RSSI pairs).

0x2C	Byte2~3	Byte4	Byte5~8	Byte9~10	Byte11~12	Byte13~14	Byte15	Byte16	Byte17+(n-1)*7 ~ Byte23+(n-1)*7
ID	Event Status	Motion ID	UTC Timestamp	Accelerometer X	Accelerometer Y	Accelerometer Z	Battery Level	MAC-RSSI Count (n)	MAC-RSSI Pairs (n)

MAC-RSSI Format

Byte0~5	Byte6
MAC Address (6 bytes)	RSSI (int8)

Raw Payload Example

2c 0000 00 69685f82 0004 0015 03e5 64 05 107c61841bf8 e4 3447d468f627 e1 a4ba70bc229d d3 9483c46d5dfc d2 4c10d567b467 d0

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	2C	2C is the packet ID
2~3	Event Status	uint16	0000	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
4	Motion ID	uint8	00	0: Does not need to be recorded as a specific motion. 1~255: Positioning data reported under the same motion status (same ID refers to the same motion)
5~8	UTC Timestamp	uint32	69685f82	0x69685F82 = 1768447874(DEC) seconds Convert it to UTC Time: 2026-01-15 03:31:14
9~10	Accelerometer X	int16	0004	0x0004 = 4 mg
11~12	Accelerometer Y	int16	0015	0x0015 = 21 mg
13~14	Accelerometer Z	int16	03e5	0x03E5 = 997 mg
15	Battery Level	uint8	64	0x64 = 100%
16	MAC-RSSI Count (n)	uint8	05	Number of Wi-Fi access points detected (n = 5)
17~23	MAC-RSSI Pair 1	7 bytes	107c61841bf8 e4	MAC: 10:7C:61:84:1B:F8, RSSI: 0xE4 = -28 (int8)
24~30	MAC-RSSI Pair 2	7 bytes	3447d468f627 e1	MAC: 34:47:D4:68:F6:27, RSSI: 0xE1 = -31 (int8)
31~37	MAC-RSSI Pair 3	7 bytes	a4ba70bc229d d3	MAC: A4:BA:70:BC:22:9D, RSSI: 0xD3 = -45 (int8)
38~44	MAC-RSSI Pair 4	7 bytes	9483c46d5dfc d2	MAC: 94:83:C4:6D:5D:FC, RSSI: 0xD2 = -46 (int8)
45~51	MAC-RSSI Pair 5	7 bytes	4c10d567b467 d0	MAC: 4C:10:D5:67:B4:67, RSSI: 0xD0 = -48 (int8)

BLE Location Data Packet (Accelerometer On,0x2D)

The BLE location packet contains Bluetooth scan results along with accelerometer and battery information. The frame ID is 0x2D, and the total length is dynamic based on the number of Bluetooth devices scanned (23 + (n-1) * 7 bytes, where n is the number of MAC-RSSI pairs, maximum n = 5).

0x2D	Byte2~3	Byte4	Byte5~8	Byte9~10	Byte11~12	Byte13~14	Byte15	Byte16	Byte17+(n-1)*7 ~ Byte23+(n-1)*7
ID	Event Status	Motion ID	UTC Timestamp	Accelerometer X	Accelerometer Y	Accelerometer Z	Battery Level	MAC-RSSI Count (n)	MAC-RSSI Pairs (n)

MAC-RSSI Format

Byte0~5	Byte6
MAC Address (6 bytes)	RSSI (int8)

Raw Payload Example

2d 0000 00 69686032 fff9 0015 03df 64 05 c30000564b3b ce c20303003f00 ce 588c81a0fbf2 cc c20303003f03 cb c30000564af2 c7

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	2D	2D is the packet ID
2~3	Event Status	uint16	0000	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
4	Motion ID	uint8	00	0: Does not need to be recorded as a specific motion. 1~255: Positioning data reported under the same motion status (same ID refers to the same motion)
5~8	UTC Timestamp	uint32	69686032	0x69686032 = 1768448050(DEC) seconds Convert it to UTC Time: 2026-01-15 03:34:10
9~10	Accelerometer X	int16	fff9	0xFFF9 = -7 mg
11~12	Accelerometer Y	int16	0015	0x0015 = 21 mg
13~14	Accelerometer Z	int16	03df	0x03DF = 991 mg
15	Battery Level	uint8	64	0x64 = 100%
16	MAC-RSSI Count (n)	uint8	05	Number of Bluetooth devices detected (n = 5, maximum 5)
17~23	MAC-RSSI Pair 1	7 bytes	c30000564b3b ce	MAC: C3:00:00:56:4B:3B, RSSI: 0xCE = -50 (int8)
24~30	MAC-RSSI Pair 2	7 bytes	c20303003f00 ce	MAC: C2:03:03:00:3F:00, RSSI: 0xCE = -50 (int8)
31~37	MAC-RSSI Pair 3	7 bytes	588c81a0fbf2 cc	MAC: 58:8C:81:A0:FB:F2, RSSI: 0xCC = -52 (int8)
38~44	MAC-RSSI Pair 4	7 bytes	c20303003f03 cb	MAC: C2:03:03:00:3F:03, RSSI: 0xCB = -53 (int8)
45~51	MAC-RSSI Pair 5	7 bytes	c30000564af2 c7	MAC: C3:00:00:56:4A:F2, RSSI: 0xC7 = -57 (int8)

GNSS Location Data Packet(Accelerometer Off, 0x2E)

The GNSS location data packet contains GPS positioning data along with battery information. The frame ID is 0x2E, and the total length is 17 bytes.

0x2E	Byte2~3	Byte4	Byte5~8	Byte9~12	Byte13~16	Byte17
ID	Event Status	Motion ID	UTC Timestamp	Longitude	Latitude	Battery Level

Raw Payload Example

2e 0100 01 64f1a2b3 06ca5098 01587ee4 62

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	2E	2E is the packet ID
2~3	Event Status	uint16	0000	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
4	Motion ID	uint8	00	0: Does not need to be recorded as a specific motion. 1~255: Positioning data reported under the same motion status (same ID refers to the same motion)
5~8	UTC Timestamp	uint32	64f1a2b3	0x64f1a2b3 = 1693557427(DEC) seconds Convert it to UTC Time: 2023-09-01 08:37:07
9~12	Longitude	uint32	06ca5098	0x06CA5098 = 113,922,200 → 113.922200°
13~16	Latitude	uint32	01587ee4	0x01587EE4 = 22,576,868 → 22.576868°
17	Battery Level	uint8	62	0x62 = 98%

Wi-Fi Location Data Packet (Accelerometer Off, 0x2F)

The Wi-Fi location data packet contains Wi-Fi scan results along with battery information. The frame ID is 0x2F, and the total length is dynamic based on the number of Wi-Fi access points scanned (17 + (n-1) * 7 bytes, where n is the number of MAC-RSSI pairs, maximum n = 5).

0x2F	Byte2~3	Byte4	Byte5~8	Byte9	Byte10	Byte11+(n-1)*7 ~ Byte16+(n-1)*7
ID	Event Status	Motion ID	UTC Timestamp	Battery Level	MAC-RSSI Count (n)	MAC-RSSI Pairs (n)

MAC-RSSI Format

Byte0~5	Byte6
MAC Address (6 bytes)	RSSI (int8)

Raw Payload Example

2f 0000 00 69685f82 64 05 107c61841bf8 e4 3447d468f627 e1 a4ba70bc229d d3 9483c46d5dfc d2 4c10d567b467 d0

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	2F	2F is the packet ID
2~3	Event Status	uint16	0000	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
4	Motion ID	uint8	00	0: Does not need to be recorded as a specific motion. 1~255: Positioning data reported under the same motion status (same ID refers to the same motion)
5~8	UTC Timestamp	uint32	69685f82	0x69685F82 = 1768447874(DEC) seconds Convert it to UTC Time: 2026-01-15 03:31:14
9	Battery Level	uint8	64	0x64 = 100%
10	MAC-RSSI Count (n)	uint8	05	Number of Wi-Fi access points detected (n = 5, maximum 5)
11~17	MAC-RSSI Pair 1	7 bytes	107c61841bf8 e4	MAC: 10:7C:61:84:1B:F8, RSSI: 0xE4 = -28 (int8)
18~24	MAC-RSSI Pair 2	7 bytes	3447d468f627 e1	MAC: 34:47:D4:68:F6:27, RSSI: 0xE1 = -31 (int8)
25~31	MAC-RSSI Pair 3	7 bytes	a4ba70bc229d d3	MAC: A4:BA:70:BC:22:9D, RSSI: 0xD3 = -45 (int8)
32~38	MAC-RSSI Pair 4	7 bytes	9483c46d5dfc d2	MAC: 94:83:C4:6D:5D:FC, RSSI: 0xD2 = -46 (int8)
39~45	MAC-RSSI Pair 5	7 bytes	4c10d567b467 d0	MAC: 4C:10:D5:67:B4:67, RSSI: 0xD0 = -48 (int8)

BLE Location Data Packet (Accelerometer Off, 0x30)

The BLE location data packet contains Bluetooth scan results along with battery information. The frame ID is 0x30, and the total length is dynamic based on the number of Bluetooth devices scanned (17 + (n-1) * 7 bytes, where n is the number of MAC-RSSI pairs, maximum n = 5).

0x30	Byte2~3	Byte4	Byte5~8	Byte9	Byte10	Byte11+(n-1)*7 ~ Byte16+(n-1)*7
ID	Event Status	Motion ID	UTC Timestamp	Battery Level	MAC-RSSI Count (n)	MAC-RSSI Pairs (n)

MAC-RSSI Format

Byte0~5	Byte6
MAC Address (6 bytes)	RSSI (int8)

Raw Payload Example

30 0000 00 69686032 64 05 c30000564b3b ce c20303003f00 ce 588c81a0fbf2 cc c20303003f03 cb c30000564af2 c7

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	30	30 is the packet ID
2~3	Event Status	uint16	0000	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
4	Motion ID	uint8	00	0: Does not need to be recorded as a specific motion. 1~255: Positioning data reported under the same motion status (same ID refers to the same motion)
5~8	UTC Timestamp	uint32	69686032	0x69686032 = 1768448050(DEC) seconds Convert it to UTC Time: 2026-01-15 03:34:10
9	Battery Level	uint8	64	0x64 = 100%
10	MAC-RSSI Count (n)	uint8	05	Number of Bluetooth devices detected (n = 5, maximum 5)
11~17	MAC-RSSI Pair 1	7 bytes	c30000564b3b ce	MAC: C3:00:00:56:4B:3B, RSSI: 0xCE = -50 (int8)
18~24	MAC-RSSI Pair 2	7 bytes	c20303003f00 ce	MAC: C2:03:03:00:3F:00, RSSI: 0xCE = -50 (int8)
25~31	MAC-RSSI Pair 3	7 bytes	588c81a0fbf2 cc	MAC: 58:8C:81:A0:FB:F2, RSSI: 0xCC = -52 (int8)
32~38	MAC-RSSI Pair 4	7 bytes	c20303003f03 cb	MAC: C2:03:03:00:3F:03, RSSI: 0xCB = -53 (int8)
39~45	MAC-RSSI Pair 5	7 bytes	c30000564af2 c7	MAC: C3:00:00:56:4A:F2, RSSI: 0xC7 = -57 (int8)

Positioning Status Packet with Accelerometer (0x31)

The positioning status packet contains the positioning status along with accelerometer data, event status, and battery information. The frame ID is 0x31, and the total length is 15 bytes.

0x31	Byte2	Byte3~4	Byte5~8	Byte9~10	Byte11~12	Byte13~14	Byte15
ID	Positioning Status	Event Status	UTC Timestamp	Accelerometer X	Accelerometer Y	Accelerometer Z	Battery Level

Raw Payload Example

31 00 0100 694b3db0 003a 039d fe84 62

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	31	31 is the packet ID
2	Positioning Status	uint8	00	0x00: locate successful. 0x01: The GNSS scan timed out. 0x02: The Wi-Fi scan timed out. 0x03: The Wi-Fi + GNSS scan timed out. 0x04: The GNSS + Wi-Fi scan timed out. 0x05: The Bluetooth scan timed out. 0x06: The Bluetooth + Wi-Fi scan timed out. 0x07: The Bluetooth + GNSS scan timed out. 0x08: The Bluetooth + Wi-Fi + GNSS scan timed out. 0x09: Location Server failed to parse the GNSS location. 0x0A: Location Server failed to parse the Wi-Fi location. 0x0B: Location Server failed to parse the Bluetooth location. 0x0C: Failed to parse location due to the poor accuracy. 0x0D: Time synchronization failed. 0x0E: Failed due to the old Almanac. 0x0F: The GNSS + Bluetooth scan timed out.
3~4	Event Status	uint16	0000	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
5~8	UTC Timestamp	uint32	694B3DB0	0x694B3DB0 = 1766538672(DEC) seconds Convert it to UTC Time: 2025-12-24 01:11:12
9~10	Accelerometer X	int16	003a	0x003A = 58 mg
11~12	Accelerometer Y	int16	039d	0x039D = 925 mg
13~14	Accelerometer Z	int16	fe84	0xFE84 = -380 mg
15	Battery Level	uint8	62	0x62 = 98%

Positioning Status Packet (Accelerometer Off, 0x32)

The positioning status packet contains the positioning status along with event status and battery information. The frame ID is 0x32, and the total length is 9 bytes.

0x32	Byte2	Byte3~4	Byte5~8	Byte9
ID	Positioning Status	Event Status	UTC Timestamp	Battery Level

Raw Payload Example

32 00 0100 694b3db0 62

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	32	32 is the packet ID
2	Positioning Status	uint8	00	0x00: locate successful. 0x01: The GNSS scan timed out. 0x02: The Wi-Fi scan timed out. 0x03: The Wi-Fi + GNSS scan timed out. 0x04: The GNSS + Wi-Fi scan timed out. 0x05: The Bluetooth scan timed out. 0x06: The Bluetooth + Wi-Fi scan timed out. 0x07: The Bluetooth + GNSS scan timed out. 0x08: The Bluetooth + Wi-Fi + GNSS scan timed out. 0x09: Location Server failed to parse the GNSS location. 0x0A: Location Server failed to parse the Wi-Fi location. 0x0B: Location Server failed to parse the Bluetooth location. 0x0C: Failed to parse location due to the poor accuracy. 0x0D: Time synchronization failed. 0x0E: Failed due to the old Almanac. 0x0F: The GNSS + Bluetooth scan timed out.
3~4	Event Status	uint16	0100	0x0000 = No events triggered Bit 0: false Bit 1: Start moving event Bit 2: End movement event Bit 3: Motionless event Bit 4: Shock event Bit 5: Temperature event Bit 6: Light event Bit 7: SOS event Bit 8: Press once event Bit 9: Disassembled event Convert to hexadecimal: 0x0001: Start moving event 0x0002: End movement event 0x0004: Motionless event 0x0008: Shock event 0x0010: Temperature event 0x0020: Light event 0x0040: SOS event 0x0080: Press once event 0x0100: Disassembled event
5~8	UTC Timestamp	uint32	694B3DB0	0x694B3DB0 = 1766538672(DEC) seconds Convert it to UTC Time: 2025-12-24 01:11:12
9	Battery Level	uint8	62	0x62 = 98%

Downlink Packet, FPort=5

The tracker supports LoRaWAN to downlink some commands to adjust parameters. If the device is hibernated, the downlink command takes effect the next time the device wakes up to upload data.

Due to the LoRaWAN Class A, where downlink windows only open following an uplink, commands are not real-time. For instance, if the reporting interval is set to 10 minutes, it may take up to 10 minutes for the device to receive the downlink command during its next transmission window.

Note: FPort=5

Request Device Status Packet (0x8F)

0x8F
ID

Example:

8F: Request the latest device status and location packet.

Setting Work Mode & Positioning Strategy (0x90)

0x90	Byte2	Byte3	Byte4~5	Byte6~7	Byte8~9
ID	Work Mode	Positioning Strategy	Heartbeat Interval	Periodic Mode Uplink Interval	Event Mode Uplink Interval

Byte10	Byte11	Byte12	Byte13	Byte14	Byte15~30
Enable 3-Axis Accelerometer	Enable Disassemble Alarm	GNSS Scan Timeout(S)	iBeacon Scan Timeout(S)	UUID Filter Valid Byte	UUID Filter

Note:
Heartbeat Interval / Periodic Mode Uplink Interval / Event Mode Uplink Interval unit: minutes

Example:

90 01 01 02d0 0014 0005 01 01 1e 0a 10 00000000000000000000000000000000

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	90	90 is the packet ID
2	Work Mode	uint8	01	01 = Periodic Mode 00: Standby Mode 01: Periodic Mode 02: Event Mode
3	Positioning Strategy	uint8	01	00: Only GNSS 01: Only Wi-Fi 02: Wi-Fi + GNSS 03: GNSS + Wi-Fi 04: Only Bluetooth 05: Bluetooth + Wi-Fi 06: Bluetooth + GNSS 07: Bluetooth + Wi-Fi + GNSS 08: GNSS + Bluetooth
4~5	Heartbeat Interval	uint16	02d0	0x02D0 = 720 minutes
6~7	Periodic Mode Uplink Interval	uint16	0014	0x0014 = 20 minutes
8~9	Event Mode Uplink Interval	uint16	0005	0x0005 = 5 minutes When no event is triggered, data will be uploaded every 5 minutes.
10	Enable 3-Axis Accelerometer	uint8	01	00: Disable 01: Enable
11	Enable Disassembly Alarm	uint8	01	00: Disable 01: Enable
12	GNSS scan timeout	uint8	1E	0x1E = 30 seconds
13	iBeacon scan timeout	uint8	0A	0x0A = 10 seconds
14	UUID Filter Valid Bytes	uint8	10	Number of valid bytes in UUID filter (0–16)
15~30	UUID Filter	16 bytes	0000000000000000 0000000000000000	16‑byte Bluetooth UUID filter. Only first N bytes (defined by byte30) are meaningful

Setting Event Mode Threshold (0x91)

0x91	Byte2	Byte3~4	Byte5~6	Byte7	Byte8~9
ID	Enable Motion Event	3-Axis Motion Threshold	Uplink Interval On Motion	Enable Motionless Event	Motionless Timeout

Byte10	Byte11~12
Enable Shock Event	3-Axis Shock Threshold

Example:

91 01 001e 0005 01 01 2c

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	91	91 is the packet ID
2	Enable Motion Event	uint8	01	00: Disable 01: Enable
3~4	3-Axis Motion Threshold	uint16	001e	0x001E = 30 mg When the acceleration exceeds 30 mg, the device determines it is in motion
5~6	Uplink Interval On Motion	uint16	0005	0x0005 = 5 minutes When motion is detected, the reporting interval is 5 minutes
7	Enable Motionless Event	uint8	01	00: Disable 01: Enable
8~9	Motionless Timeout	uint16	012c	0x012C = 300 minutes If the device remains stationary for more than 300 minutes, a motionless event will be triggered
10	Enable Shock Event	uint8	01	00: Disable 01: Enable
11~12	3-Axis Shock Threshold	uint16	012c	0x012C = 300 mg When the acceleration exceeds 300 mg, the shock event will be triggered

Request Device Status Packet (0x92)

0x92
ID

Example:

92: Force a GNSS location fix.

Setting Work Mode & Positioning Strategy & Event Mode Threshold (0x97)

0x97	Byte2	Byte3	Byte4~5	Byte6~7	Byte8~9
ID	Working Mode	Positioning Strategy	Heartbeat Interval	Periodic Mode Uplink Interval	Event Mode Uplink Interval

Byte10	Byte11	Byte12	Byte13	Byte14	Byte15~30
Enable 3-Axis Accelerometer	Enable Disassembly Alarm	GNSS Scan Timeout	iBeacon Scan Timeout	UUID Filter Valid Bytes	UUID Filter

Motion Event Settings

Byte31	Byte32~33	Byte34~35
Enable Motion Event	3-Axis Motion Threshold	Uplink Interval On Motion

Motionless Event Settings

Byte36	Byte37~38
Enable Motionless Event	Motionless Timeout

Shock Event Settings

Byte39	Byte40~41
Enable Shock Event	3-Axis Shock Threshold

Example:

97 01 02 003c 001e 000a 01 01 0a 05 10 00000000000000000000000000000000 01 001e 0005 01 012c 01 012c

Byte	Value	Type	Raw Data	Description
1	Frame ID	uint8	97	97 is the packet ID
2	Work Mode	uint8	01	00: Standby Mode 01: Periodic Mode 02: Event Mode
3	Positioning Strategy	uint8	02	00: Only GNSS 01: Only Wi-Fi 02: Wi-Fi + GNSS 03: GNSS + Wi-Fi 04: Only Bluetooth 05: Bluetooth + Wi-Fi 06: Bluetooth + GNSS 07: Bluetooth + Wi-Fi + GNSS 08: GNSS + Bluetooth
4~5	Heartbeat Interval	uint16	003c	0x003C = 60 seconds
6~7	Periodic Mode Uplink Interval	uint16	001e	0x001E = 30 seconds
8~9	Event Mode Uplink Interval	uint16	000a	0x000A = 10 minutes When no event is triggered, data will be uploaded every 10 minutes.
10	Enable 3-Axis Accelerometer	uint8	01	00: Disable 01: Enable
11	Enable Disassembly Alarm	uint8	01	00: Disable 01: Enable
12	GNSS Scan Timeout	uint8	0a	0x0A = 10 seconds
13	iBeacon Scan Timeout	uint8	05	0x05 = 5 seconds
14	UUID Filter Valid Bytes	uint8	10	0x10 = 16 bytes
15~30	UUID Filter	byte[16]	0000000000000000 0000000000000000	UUID filter value (16 bytes)
31	Enable Motion Event	uint8	01	00: Disable 01: Enable
32~33	3-Axis Motion Threshold	uint16	001e	0x001E = 30 mg
34~35	Uplink Interval On Motion	uint16	0005	0x0005 = 5 minutes When motion is detected, the reporting interval is 5 minutes
36	Enable Motionless Event	uint8	01	00: Disable 01: Enable
37~38	Motionless Timeout	uint16	012c	0x012C = 300 minutes
39	Enable Shock Event	uint8	01	00: Disable 01: Enable
40~41	3-Axis Shock Threshold	uint16	012c	0x012C = 300 mg

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