Guangdong, China
Business Type:
Trading Company
Number of Employees:
Year of Establishment:
Main Markets:
North America, South America, Europe
OEM/ODM Availability:
OEM/ODM Service
Sample Available

GPS Tracker, Car Tracker with GPS, GPS Positioning System manufacturer / supplier in China, offering GPS Tracking Device Google Maps GPS Tracker with Android/Ios Support Tk121, Car GPS Tracker with Keelin GPS Tracking System (TK419), Multifunctional GPS Tracking Device for Vehicle Security Anti-Theft (TK116) and so on.

Diamond Member Since 2014
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Supplier Homepage Products GPS phone GPS Tracking Device Google Maps GPS Tracker with Android/Ios Support Tk121

GPS Tracking Device Google Maps GPS Tracker with Android/Ios Support Tk121

Purchase Qty. / Reference FOB Price
10-2,999 Pieces US $22
3,000+ Pieces US $18
Port: Shenzhen, China
Production Capacity: 100, 000 Pieces Per Month
Payment Terms: T/T, Western Union, Paypal
GPS Positioning Accuracy: 5-15m
GPS Frequency: 1575MHz
GSM Frequency: 850/900/1800/1900MHz
Voltage: 3-36VDC
Optional Accessory: Relay, Gpio
Battery Capacity: 70mAh

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Basic Info.

Model NO.
Operating Principle
Interferometric Type
Port Number
Integration Type
Carrier Frequency
Netural or OEM logo mark
Transport Package
Industrial Packaging
Shenzhen, China
HS Code

Basic info of Real time GPS Tracker TK121


Model No.: TK121

Type: GPS Tracker

Use: Automotive

Operating Principle: Interferometric Type

Carrier Frequency: Dual-Frequency

Certification: ISO2000, ISO14001, ISO/TS16949

Working Voltage: 6-36V DC

Working/Standby Current: <30mA@12V / <10mA@ 12V

GPS Positioning Accuracy: 5-15m

GSM Positioning Accuracy: About 200 M

GSM Frequency: 850/900/1800/1900MHz

Hot/Warm/Cold Start Time: <3s,<15s,<60s

Battery Capacity: 70mAh

Dimensions (mm): 85.8(L)X30.6(W)X10.8(H)

Operating Temperature: -20ºC~70ºC

Operating Humidity: 20%~80%RH



Supports quad bands,i.e. 850/900/1800/1900MHz, universal in the world.
Wide Input Voltage:6-36V DC.
GPS precise positioning with A-GPS and uploaded by GPRS regularly, Supports real-time tracking and history track playback.
Keelin Tracking Service Platform, Keelin APP Client, SMS query
Built-in battery, Power disconnect alarm & Low battery alarm.
Supports multiple alarm, acceleration sensor can be added (B models, optional component), so as increase vibration, collision and falling alarm.
Supports ACC status checking and vehicle status notifying.
Relay to remotely control the vehicle..
SOS button for SOS call.
MIC to remotely monitor.
Multiple protocol support, can be integrated to platform of customers
OTA upgrade firmware.


The description of Real time GPS Tracker TK121

The TK121 has the feature that remote vehicle disabling systems with cut engine, cut oil.TK121 is a GPS Tracker that installs behind the dashboard. 

To know more about the features of remotely shut off engine for car

The tracker updates times could setup by you and can be installed almost all round the vehicle. The TK121gps tracking remote vehicle disabling systems is used to remotely disable the ignition from any location using your phone or computer. 


The Hard Wire Tracker will provide up to a one year report history of all events including the miles per hour, ignition on/off, motion detected and stopped, as well as several other events. GPS tracker TK121 is a tracking device which is based on GSM /GPRS network and GPS satellite positioning system.


It can be set multiple functions of positioning, tracking, monitoring, alarms etc. Eelink GPS tracker is based on GSM/GPRS network and GPS global positioning system for precise position of vehicle,valuables,children, assets.Each GPS tracker need to install smart SIM card. 


The SIM card receive signals from satellites per 30 seconds( Timer could be set) and transmit signals by GSM/GPRS network to our server. User could view the real time location and historical route of vehicle on google map by web browser/ mobile android /iOS APP, SMS.

Application Of Real time GPS Tracker TK121

Logistics enterprises
Fleet management
Bus management
Car sales
Rental car
vehicle maintenance
technology researchers 

Vehicle GPS Tracking Device Solutions


Parameter of GPS tracker TK121

Work current<30mA@12V
Standby Current<10mA@12V
GPS positioning accuracy5-15m
GSM Positioning AccuracyAbout 200 m
GPS Frequency1575MHz
GSM Frequency850/900/1800/1900MHz
Hot/Warm/Cold Start time<3s,<15s,<60s
Battery Capacity70mah
Dimensions (mm)85.8(L)X30.6(W)X10.8(H)
Operating Temperature-20ºC~70ºC
Operating Humidity20%~80%RH



Real-time Tracking
Route Play Back
Cut Oil (Need Relay)
SOS Alarm (Need SOS Cable)
Listen (Need Microphone)
Vibration Alarm
Collision / Falling Alarm
Speed Alarm
Geo-fence Alarm
Power Disconnect Alarm
Low Battery Alarm


1. Default interface: Microphone input port for remote monitoring
2. Can be extended: ADC input port , used for temperature and oil detection
3. Can be extended: External lithium battery port ,used for High capacity battery
4. Can be extended: UART expansion port (TTL level), RS232 serial port expansion application

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