Specifications

General Specifications

Parameter	Value
Master Chip	ESP32-S3FN8 (Xtensa 32-bit LX7 dual-core)
LoRa Chipset	Semtech SX1262
GNSS Chipset	Unicore UC6580
LoRa Frequency	470-510 MHz (LF) / 863-928 MHz (HF)
Max TX Power	21 ±1 dBm
LoRa Sensitivity	-135 dBm @ SF12/125kHz
Wi-Fi	802.11 b/g/n (2.4 GHz)
Bluetooth	Bluetooth 5, BLE, Mesh
Operating Temp	-20°C to +70°C
Dimensions	65.48 × 28.06 × 13.52 mm

Interfaces

Interface	Description
USB	Type-C with ESD protection
Battery	SH1.25-2 lithium battery connector
LoRa Antenna	IPEX (U.FL) connector
GNSS Antenna	IPEX (U.FL) connector
Wi-Fi/BT Antenna	Onboard 2.4 GHz metal spring
Display	0.96” TFT-LCD (80×160 RGB)

Power Supply

Caution

Except when USB or 5V Pin is connected for lithium battery charging, only connect a single power source at a time.

Power Mode	Minimum	Typical	Maximum	Unit
Type-C USB (≥500mA)	4.7	5.0	6.0	V
Lithium battery (≥250mA)	3.3	3.7	4.2	V
5V pin (≥500mA)	4.7	5.0	6.0	V
3V3 pin (≥150mA)	2.7	3.3	3.5	V

Power Output

Output Pin	Max Current
3.3V Pin	500 mA
5V Pin (USB powered only)	500 mA
Vext Pin	350 mA

Power Consumption

Mode	USB Power	Battery Power
Wi-Fi Scan	100 mA	74 mA
Wi-Fi AP	150 mA	111 mA
Bluetooth	102 mA	75 mA
GNSS Active	120 mA	89 mA
LoRa TX 14 dBm	200 mA	148 mA
LoRa TX 17 dBm	220 mA	163 mA
LoRa TX 22 dBm	240 mA	178 mA
LoRa RX	80 mA	59 mA
Deep Sleep	2 mA	15 µA

Tip

Battery-powered operation is more efficient due to the lack of USB-to-3.3V conversion losses. The 15µA sleep current enables months of standby on a typical lithium cell.

LoRa RF Specifications

Transmit Power

Frequency Band	Max Power
470-510 MHz	21 ±1 dBm
867-870 MHz	21 ±1 dBm
902-928 MHz	21 ±1 dBm

Receiver Sensitivity

Bandwidth	Spreading Factor	Sensitivity
125 kHz	SF12	-135 dBm
125 kHz	SF10	-130 dBm
125 kHz	SF7	-124 dBm

Regional Frequencies

Region	Frequency (MHz)	Model
EU433	433.175-434.665	Wireless Tracker-LF
CN470	470-510	Wireless Tracker-LF
IN868	865-867	Wireless Tracker-HF
EU868	863-870	Wireless Tracker-HF
US915	902-928	Wireless Tracker-HF
AU915	915-928	Wireless Tracker-HF
KR920	920-923	Wireless Tracker-HF
AS923	920-925	Wireless Tracker-HF

GNSS Specifications

Basic Information

Parameter	Value
Channels	96
Update Rate	Up to 10 Hz
Data Format	NMEA-0183, Unicore, RTCM 3.x
Frequency Points	GPS L1+L5, BDS B2a, GLONASS G1, Galileo E1+E5a, QZSS L1+L5, SBAS L1, NAVIC L5*

*NAVIC L5 requires specific firmware

Position Accuracy

Parameter	Value
Horizontal (RMS)	1.5 m
Vertical (RMS)	2.5 m
Time (RMS)	5 ns
Speed	0.02 m/s

Time to First Fix (TTFF)

Mode	Time
Cold Start	< 26 s
Warm Start	< 2 s
Recapture	1 s

Sensitivity by System

Sensitivity	GNSS	BDS	GPS	Galileo	GLONASS
Cold Start	-148	-146	-148	-144	-144 dBm
Warm Start	-156	-155	-155	-154	-148 dBm
Tracking	-165	-163	-165	-163	-158 dBm
Recapture	-156	-154	-156	-154	-152 dBm

Physical Dimensions

Dimensions: 65.48 × 28.06 × 13.52 mm