LTE Cat.M1 & NB Tracker with Long Battery Life

  • Quectel BG96 module, suitable for USA, EU and Australia

  • Multiple working modes (power consumption from low to high)

One report per day (standby time up to 5 years)

Tracking only when moving is detected

Tracking at long interval with GPS/MCU/LTE in sleep mode at most times

Tracking in real-time

  • Long standby time

  • Trip start and trip end

  • Drop alarm

  • Vibration alarm

  • Low battery alarm

  • LBS positioning

  • Built-in magnets

  • Storing messages

  • Waterproof

  • Geofence

  • OTA (Over-the-air)


ES821 is an LTE (Cat-M1 & NB) waterproof GPS asset tracker with 7,800mAh large battery. Thanks to its embedded magnets, ES821 can be easily installed to many objects with iron surface. Light sensor is used for detecting the drop or detachment of the device from the asset and a tamper message will be sent if it happens. It is carefully designed for long standby time purpose. Vibration mode is very useful for the applications in which the location information is unnecessary when it is stationary to save data communication and power consumption.

LTE & GSM Specifications

Operating Band

Cat.M1 & NB:

LTE-FDD: B1/ B2/ B3/ B4/ B5/ B8/ B12/ B13/ B18/ B19/ B20/ B25/ B26/B28

LTE-TDD: B39 (for Cat.M1 only)


GSM850/ GSM900/ DCS1800/ PCS1900

General Specifications





Battery Capacity


Supply Voltage

3.3VDC ~ 4.2VDC

Power Consumption

-Active mode:<60mA@4VDC

-Power saving mode:<4mA@4VDC

-Deep Sleep Mode:<60μA@4VDC

Operation Temperature

-20 to 65

Storage Temperature

-20 to 65

LTE Module

Quectel BG96


Built-in cellular antenna and GPS antenna

Charging Method

USB charging

GPS Specifications


Tracking: -157dBm

Position Accuracy (CEP 50)

<2.5m(Open Sky)


LED Indicators

3 for GPS, cellular and charging status

SIM Card

Micro SIM(3FF)

Feature list


Send GPS information to server with configurable report interval

Power Saving by Report Interval

1.LTE and GPS will be shut down at most times in one report per day mode

2.LTE, GPS and MCU in sleep mode in long report interval (e.g. >3 minutes) mode

3.LTE, GPS and MCU in active mode in short report interval (< 3 minutes) mode

Long Standby Time

It can last 5 years under one report per day mode with 7800mAh battery

Trip Start and Trip End 

Report trip start and trip end

Drop Alarm

Light sensor is used to detect the drop/detach from the tracking object

Vibration Mode

Report location information only when moving is detected

LBS Positioning

Report Cell ID info when GPS signal is not available

Built-in Magnets

Embedded with magnets, it can easily be installed to vehicle, trailer, container for asset tracking

Low Battery Alarm

Send alarm when battery voltage is low

Storing Messages

Store messages if out of cellular coverage


Support multi circle and polygon geofence setting

OTA (Over-the-air)

Firmware can be remotely upgraded