1.Build-in GPS personal locator.
2.GSM /SMS communication or GPRS TCP/UDP connection .
3.Works worldwide!
4.Support 3-frequency GSM 900/1800/1900 MHZ
And 4-frequency GSM MHZ.(Optional)
5.High sensitivity, new technology and latest GPS SiRF-Star III pset!
6.Excellent for fixing the position even at a weak signal status.
7.Work well even in areas with limited sky view like urban canyons .
8.Compact size, and smaller than one name card. Easy to hide
9.Very Low power consumption
10.Fast Signal Acquisition
11.Support single location and continuous tracking
12.Support location triggered by tracker
13.Support location triggered by authorized cell phone
14.Support alarm and remote monitor
15.Support quick dialing buttons for 3 preset phone numbers
16.Support check location by SMS and GPRS
17.Monitors can track the person without interfering him, LIVE! Real-Time tracking!
18.Locate the locator holder by the mobile phone via SMS (short messaging system).
19.SOS button send out exact location for immediate rescue/action.
20.Geo-fencing to restrict movement to a defined radius.
21.No monthly service charges to be paid to the call center

New feature:

waterproof case;
optional magnetic mounted ;
with optional external battery ( extend to work for 7 days) ;
optional pet collar

Specification

Hardware
GSM module:embedded GSM 900/1800/1900Mhz
embedded GSM 850/900/1800/1900Mhz (Optional)
and GPRS TCP/UDP
GPS pset:latest GPS SiRF-Star III pset
GPS Sensitivity:-158Db
GPS Frequency:L1, 1575.42 MHz
C/A Code:1.023 MHz p rate
Channels:20 channel all-in-view tracking
Position Accuracy:10 meters, 2D RMS
Velocity Accuracy:0.1 m/s
Time Accuracy:1 us synchronized to GPS time
Default datum:WGS-84
Reacquisition:0.1 sec., average
Hot start:1 sec., average
Warm start:38 sec., average
Cold start:42 sec., average
Altitude Limit:18,000 meters (60,000 feet) max.
Velocity Limit:515 meters/second (1000 knots) max.
Acceleration Limit:Less than 4g
Jerk Limit:20 m/sec

Other
Operating temperature:-25° to 65° C
Humidity:5% to 95% Non-condensing
Dimension:76 mm × 46 mm × 25 mm
Voltage Rechargeable and replaceable 1300 mAh battery (3.7V),5V for charging input.
Charging connector:DC 5V (USB port)
Standby time:Over 60 hours
LED:3 LEDs showing Power, GPS and GSM status.
And other operation status.
KEY:3 Keys for SOS Emergency key, quick dial key B , quick dial key C