TK220 GPS Car Alarm is the best security alarm systems for car protection, It is not just simple tracking device, it is also a car alarm systems

To be a tracker ( track by mobile SMS and online GPRS )
1) 000000CHK-----get latitude and longitude, input to get real address
2) 000000MAP-----get Google map's URL, use smart phone to open the URL link, get real address directly on mobile.
3) 000000ADD-----get real address ( street name, city name )
4) Online website tracking by GPRS data network ( user demo1 pass 1 )

To be alarm:
1) Movement alarm
2) Geo-fence alarm
3) Over-speed alarm
4) Power failure alarm and low power alarm
TK220 has Rechargeable 3.7V 600mAh Li-ion battery, If the car battery is cut off or low enough, the system will send alarm SMS to warn you

5) Engine on alarm
In arm status, if the car door is open, will trigger door open alarm, the siren will sound for 20 seconds, and the system will firstly send SMS alert to you and the call out the preset alarm-received phone number, meanwhile, the relay will cut off engine at the same time

6) Vibration Alarm
TK220 has built in motion sensor, In arming status, if the car is vibrated, it will send out alarm SMS.

7) Door open Alarm
In arm status, if the car door is open, will trigger door open alarm, the siren will sound for 20 seconds, and the system will firstly send SMS alert to you and the call out the preset alarm-received phone number, meanwhile, the relay will cut off engine at the same time


Other functions:

1) Start engine remotely by SMS ( needs to connect optional remote starter, and send 111111STR to start engine remotely )
2) Fuel level monitoring and get up/down fuel alarm by GPRS website platform
3) Open/Close door by SMS and remote
4) Central lock automation, ( when the speed is >30Km/h, car door will be locked automatically; )
5) Check the real physical address free of charge; ( user can send 111111ADD to system, will get reply SMS with real address e. G.: City name, street name...)
6) Two-way talking function ( needs to connect optional speaker to talk )
7) Inbuilt 4MB data logger; ( tracker will store datas when no GPRS connection and upload to server after recovers, this is very useful for online fleet management
8) Upgrade normal car alarm to GPS Alarm
9) Arm/disarm system by phone call besides by SMS; Other tracker must send SMS to Arm/disarm, which is not convenient
10) Stop the car by phone gradually for safety
11) Voice monitoring and Two-way talking
12) Odometer report with coordinate