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item description

Bicycle GPS Tracker Bike Tracking Device Crawler Coban TK305 30Days Standby Move Alarm LBS GSM GPS Locator Geofence Free Web APP

This bicycle gps tracker Coban TK305 is a Bike tracking device which is working based on the 2G GSM/GPRS network and GPS satellite positioning system. It set multiple functions of security, positioning and tracking in its entirety. It can track and monitor target by SMS, Mobile APP and Web tracking platform.
Besides, this bicycle crawler TK305 is a full featured tracking device which has built-in GPS receiver with superior sensitivity and fast time to first fix. Its quad band GPRS/GSM subsystem supports 850/900/1800/1900 MHz allowing the TK305\'s location to be monitored in real time or periodically tracked by a backend server and mobile devices. System integration is straightforward as complete documentation is provided for GPRS communication protocol. The GPRS communication protocol supports a wide variety of reports realtime location, geo-fence boundary crossings, low battery and scheduled GPS position. With 700mAh built-in backup Li-ion battery, it can last up to 30 days under standby mode.
What\'s more, the tracking software for this device is free for using LIFETIME, you needn\'t pay any monthly or yearly fee for the tracking service!

  Specially designed for bicycle anti-theft and tracking.


Sleep Mode:

Sleep Modes

In SMS mode

In GPRS mode

Sleep by shock sensor

No shock, the unit will enter sleep mode with GPS off, GSM runs in low power consumption. Shock, SMS, calling can awake the tracker to work.

No shock sensor alarm and no other alarms being triggered, GPRS disconnected automatically and enter sleep by shock sensor mode, and will be back to online if shock sensor alarm or any other alarms being triggered.

Bicycle mode one

No shock, the unit will enter sleep mode with GPS &GSM off and low power consumption, SMS and calling cannot reach. In arm state, vibration can awake the tracker to work; it cannot awake in disarm state. Inductive key can awake unit to work when triggered.

No shock sensor alarm and no other alarms being triggered, GPRS disconnected automatically and enter “Bicycle mode one”, and will be back to online if shock sensor alarm being triggered, SMS and calling can not awake it.

Bicycle mode two

No shock, the unit will enter sleep mode with GPS &GSM off and low power consumption, SMS and calling cannot reach. In both arm and disarm state, vibration and triggered inductive key can awake the unit to work

No shock sensor alarm and no other alarms being triggered, GPRS disconnected automatically and enter “Bicycle mode two”, and will be back to online if shock sensor alarm being triggered, SMS and calling can not awake it.

Scheduled wake-up


After setting this mode in disarm status, the unit will work in low power consumption with GSM &GPS  off ,and SMS or calling cannot reach. At Scheduled time,the unit will automatically wake to send Scheduled time report and work for 5 minutes. If in arm status, the unit can wake up and send alarms when shock sensor alarms are triggered .Till alarms are cancelled, the tracker comes back to scheduled wake-up mode and send scheduled time report at specific time.

GPRS status will works according the scheduled time, it will be back online at the scheduled time, and enter “Scheduled wake-up” mode for all the rest time.



Main Functions: 
1. Single Locating :
* If there has any authorized numbers been set up, tracker will reply to all calls with location report. If the authorized numbers been set up, then only authorized numbers will be able to receive location report from the tracker;
* Dialing the tracker device from the authorized numbers, it will hang up the call and respond a message with google map link and real-time latitude and longitude ;
* When lost fix to satellites (no GPS signals), it will track by LBS / CELL-ID. Then the replied SMS will include two positions:
- GPS coordinates of the last known position.
- LAC code.  Open www.gpstrackerxy.com find “manual track”, and put the received code in LAC and Cell-ID fields to location by LBS technology.
2. Auto track continuously:
* Track with limited times upon time interval, for example send SMS command “fix030s005n +password” to the tracker device, it will report the position information with 30s interval 5 times.
* Track with unlimited times upon time interval, for example send SMS “fix030s030m***n+password” to the tracker. Tracker will report a real-time location every 30 seconds when ACC is ON, and report location every 30 minutes when ACC is OFF. Note: The interval must not less than 10s.
* Smart track upon time and distance interval, this function means that the device can be tracked by preset distance and time interval two factors.
3. Exact street address:      You must set up the APN of your local GSM network for the SIM card in tracker first before using this function;      After configured the APN, send "address+password" to device, it will reply SMS including exact street address. For example: No.8, Guankou 2nd Rd, Nantou, Nanshan district, Shenzhen, Guangdong, china.
4. Location based service (LBS) / Cell-ID Locating: If the tracker cannot establish a solid GPS Fix, it will calculate its location using Cell-ID GSM locating. Location reports will include the GPS coordinates of the last known positions as well as a LAC code, Entering the  LAC code to the “Manual Track” menu of web tracking platform www.gpstrackerxy.com will enable you to see the tracker’s current location. You can also send command “address+password” to the tracker to request exact address, track will automatically switch to tracking by LBS in GPRS mode. Accuracy of LBS depends on the distance to the nearest GSM Network Cell Tower or Base Station.
Note: This feature can be used normally in most areas according to the signal of GSM network. It may not be available in some areas.

5. Set up arm/disarm by SMS
* Arm/lock: send SMS command “arm+password” to the tracker, the terminal of vehicles will change to arm state, Meanwhile, car door is locked, and it will reply SMS “Tracker is activated”. If the vehicle are in ignition state (ACC is ON), car door will be locked, but ARM will fail, Meanwhile, it will reply SMS “set up fail! pls turn off ACC”. If engine is off, but door is open, then the car can’t enter ARM state and reply “setup fail, pls close the door.”
* Disarm/Unlock:   send SMS command "disarm+password" to the tracker device in the vehicle, It will reply “Tracker is deactivated” in both armed and disarmed state, and the SMS command will make the tracker device enter into disarmed state if the unit currently armed. It won’t alarm if the door is open and sensor is vibrated and the engine is started when deactivated this arm function.

6. Decide how many times of alarm message: you can decide how many times of the alarm message to be sent, For those alarm message sent in cycle, you can limit the times the alarm message to be sent. For example, send SMS “ xtime+password+005 “ to tracker, alarm message will be sent 5 times once alarms are triggered.

7. Built in Acceleration Sensor Alarm:
* The tracker is built in three axis acceleration sensor, the tracker can detect it in arm state when the bike move, tilt or shock. it wakes up and send SMS “Sensor alarm+lat/long” to the authorized number, in SMS mode only one message was sent within 3 mins. 
* The sensitivity of the shock sensor has 3 levels can be configured

8. Geo-fence: set up a geo-fence for the tracker device to restrict its movements within a district. The unit will send SMS to the authorized numbers when it goes out of this district

9. Overspeed Alarm: for example, if you want to set the alarm speed as 80km/h, then when the target moves exceeding 80km/h, the unit will send SMS “speed+080!+ latitude & longitude” to the authorized numbers. it will send only one SMS in 3 minutes in SMS mode when overspeed, the siren will beep 1 time when overspeed 1 time

10. Movement Alarm: with GPS signal reception, after the unit stayed immobile in a place for 3-10 minutes, user can set the movement alarm, for example, send SMS “move+password+space+0200” to the tracker (Suppose area of a radius of 200 meters, it supports 4 digits at most. Unit: Meter).  It will reply “move OK”. In case of such a movement (the default distance is 200m), it will send SMS “Move+ latitude & longitude” to the authorized numbers.

11. Low battery alarm: the tracker will send SMS “low battery+latitude/longitude” to authorized numbers 2 times in total at 15 minutes interval when voltage of battery is going to be about 3.55V.

12. Forward the third parties’ message: for example, set the phone number of the service provider of the SIM card in the tracker, when charge remind message coming in, tracker will forward it to authorized phone number. Only 1 third parties phone number can be set up at most.
13. SIM card Balance Inquiry: How it works: take China Mobile as example, After accept balance command, tracker will remember the “mobile phone number”, carrier’s phone number and the code, then send the code to carrier’s phone number, and forward the message from carrier to mobile phone number.
14. Check the Vehicle State: send SMS command “check+password” to the tracker in the vehicle, It will reply SMS including:external power、battery、GPS signal、ACC、Door、GSM signal、GPRS status、APN、UP、IP、PORT etc.
15. Terminal (local) Time Setting: for example: Send SMS “time zone123456 8”, 8 is Chinese time zone, If your country time zone is minus, send SMS “time zone123456 -8”.
16. Reset Hardware: send SMS “reset+password” to tracker device to reset the GSM module and GPS module of the tracker device, it will reply “reset ok”.
17. Less GPRS traffic: tracker will change to less GPRS traffic mode after parking 5 minutes (ACC is OFF), GPRS disconnect and connect again when alarm being triggered or vehicle starts driving.










GPS sensitivity


GPS Accuracy


LBS Accuracy


GPS start time

Cold status  45s

Warm status  35s

Hot status  1s

Charger Voltage

110-240V  input

3.7V   output

Backup Battery

Chargeable changeable 3.7V 700mAh Li-ion battery

Standby time

30 days

Storage Temp

-40°C to +85°C

Operation Temp.

-20°C to +70°C


5%--95% non-condensing


software display

Both Web Tracking Platform and APP Have Lifetime Free Using Right!!!!

Web Tracking Platform: www.gpstrackerxy.com , demo account:  username: demo, password: 8888



Android & iOS APP :



item pictures





packing list

1 * GPS305 Main Unit
1 * Inductive Key
2 * Battery
1 * Home Charger (EU and US available for choice)
1 * Screw(with nut)
1 * USB Cable
1 * Charger
1 * User Manual(English)
(No SIM Card and SD Card Included, No Original Box)