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Shenzhen Dragon Bridge Technology Co., Ltd
Shenzhen Dragon Bridge Technology Co., Ltd DragonBridge---Roadragon, 12 years gps tracker factory from china
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Waterproof Personal GPS Tracker Platform Control Lock Prisoner / Parolee

Waterproof Personal GPS Tracker Platform Control Lock Prisoner / Parolee

Brand Name : Roadragon
Model Number : TK-C03
Certification : EC&FCC. ISO9000
Place of Origin : China
MOQ : 1
Price : Negotiable
Payment Terms : D/A, D/P, L/C, T/T,Paypal
Supply Ability : 2000pieces per month
Delivery Time : 1-3 days after the payment
Packaging Details : normal packing
Max. Altitude : 18,000m (Max. 60,000 ft)
Velocity Accuracy : 0.1 M/S
Water resistance : IP67
Product size : 93*54*31mm
Working time : 10-12 days of standby time in personal mode
Application : alzheimer’s patient tracking, prisoner/parolee management
Max. Acceleration : less than 4g
Button : 2 buttons. 1 SOS button, 1 power switch
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Prisoner / Parolee management Personal GPS Waterproof Platform control lock

Product Specifications:

Cannot switch on
Power switch operation’s problemMake sure press the power switch for 5 seconds or longer
Low batteryCharging for 2.5 – 3 hours
Not reply SMS
Blue light is always on

Make sure tracker can receive the strong GSM signal

Check SIM card installation, insert again if necessary

Replace a new SIM if necessary

GSM network is busyWait for SMS. Sometimes GSM networks are slow during peak time or when they have equipment problems.
Password or SMS format is wrongDouble check password or SMS format, password and format must be right
Not enough SIM balanceReplace SIM card or check balance value
Low batteryPlease do charging
Yellow light is 1s on and 1s off
The tracker has already blocked the GPS signalMove the tracker to open area w/o any tall building, tree and heavy raining. Those can shield GPS signal
GPS signal is weakPlace the GPS internal antenna face to the sky
Low batteryPlease do charging
No GPRS connection
SIM card cannot supports GPRS functionEnable SIM’s GPRS function
GPRS function is disabledEnable the GPRS function
Incorrect IP or PortDouble check IP and Port and make sure they are correct, then restart the tracker
GSM signal is weakMove the tracker to a place with strong GSM signal

Product features:

If your mobile phone is smart phone and opened with GPRS service, it is more convenient to see location of the tracker on smart phone by setting the SMS location format to be Google Link. At the same time, the GPRS data can be sent to the internet server, which can achieve the checking, monitoring and managing of the tracker on computer.

Tracker has built-in terminals of GPS (global positioning system) module and GSM communication module, which used for getting location data and send it to authorized phone number via SMS, and tracking through free maps Google Earth or Google Map;

Real time tracking

The tracker will reply a location SMS if there is any authorized number makes a phone call to it.

SOS emergency calling

Press SOS button for 3 seconds or longer, tracker will send SOS alarm SMS to all authorized numbers. If the authorized number is set with the SOS emergency calling function, tracker will call those authorized numbers one by one in order. If one of those is answered, the tracker will not call the others.

GPRS data logger

Tracker has build in 8M bytes memory for GPRS data save. When GPRS interval tracking can not upload to server, data will be automatically stored in the memory. After that, once the GPRS reconnected, tracker will send the data to server again.

Note: real time data will be sent first, the priority of the stored data is low.

Acquire APN automatically

The APN list can be configured before delivery (default is China APN). When insert SIM card, tracker will automatically acquire APN in the APN list. If user already set APN, then the tracker will not acquire APN automatically.

Insert the SIM card


SMS Command: $SMS,000000;W018,NO.,name,lat,lng,radius;!

Description: when set the geo-fence, longitude and latitude can be filled in command directly; tracker will get the newest position automatically to be fence center if longitude and latitude is empty in command. After enable geo-fence function, when tracker moves in/out the preset geo-fence, it will send an SMS alarm to the authorized phone number (please also enable the Geo-fence function when you set the authorized number) and send this alarm to server via GPRS.


NO.: serial number of geo-fence, range of: 1 to 5

name: name of geo-fence, range of: 0-9 characters

lat: center’s latitude, range of: -90.00000000~90.00000000, unit: degrees

lng: center’s longitude, range of:-180.00000000~180.00000000, unit: degrees

radius: geo-fence’s radius, range of: 0.0~1.79E+308, unit: meters

Note: The geo-fence is a perfect circle based on the preset radius and centre.




Product Tags:

personal gps locator


personal gps tracking device

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