4G GPS Tracker Processing

There are some factors to consider when choosing a 4G GPS Tracker, First of all, you need to choose a tracker with good signal coverage and positioning accuracy. In general, the more satellite positioning systems a tracker uses, the wider the signal coverage and the higher the positioning accuracy. Therefore, it is recommended to choose trackers that use several satellite systems.

Project Details

1. Features

4G Pet GPS/WiFi/Bluetooth tracking
Super light just 28g and smallest pet gps tracker
Standby for 3 months
Bluetooth scanning in short distance to find pet faster
Compatible with your collar harness
Accurate tracking both indoor and outdoor.
Update location every 120s if turn on urgent track mode.
Cancel urgent track mode when stay at home or safe.
Remote turn on LED night light to help in dark
Tracking APP switch different working mode
Bluetooth standby/Walking/Urgent track mode
Check history trace playback from APP
Low battery alarm & Geo-fence (Urgent track mode)

2. Specifications

General specifications
NB20 device dimension	50(L) x33(W)x17.5(H) mm
Device weight	28g
Antenna	Built-in
Battery	Rechargeable, 3.7V,600mAh
Standby	3months BLE mode
LED indicator	Red for power/Blue for night light
SIM card slot	Nano SIM card/Esim
WIFI	802.11 b/g/n, 2.4GHz
Bluetooth	BT5.0 LE
Working voltage/current	5VDC/4mA~45mA
Operating temperature	-20℃~+70℃
Waterproof	IPX7
OTA	Bluetooth OTA
GPS/GPRS Specification
Module & Chipset	Quectel BG77+ZKW AT6558R
GPRS	Class 12, TCP/IP
Max output power	21dBm
Frequency	GPS L1, 1575.42 MHz C/A code
Channel	66
Location accuracy	<2 meters
Tracking sensitivity	-162dBm
Acquisition sensitivity	-148dBm
TTFF (open sky)	Avg. hot start ≤1sec
TTFF (open sky)	Avg. cold start≤32sec
LTE frequency	CAT-M1: LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85 CAT-NB2:LTE-FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B28/B66/B71/B85