PT03是专门为小孩，老人，宠物，个人资产和车载等开发和设计，用于即时定位和安全防范的定位器。配置优良的GPS/GPRS模块，拥有强而稳定的工作性能，使其在很偏远的区域，都可以得到准确的GPS定位。

主要功能
通过SMS/GPRS定位 (TCP/UDP)
通信协议: ONERGPS通信协议或者GPSGATE通信协议(可选)
即时位置报告
间隔追踪
双向通话
监听
SOS紧急报警
电子栅栏
低电报警
超速报警
进入/退出GPS盲区报警
开机提醒
内置省电震动传感器
三个设置打电话或者发短信的按键
可续充电的可卸电池
内置话筒和扬声器

项目	规格
Charging Voltage	DC 4.2-5.5V/400mA (Mini USB port)
Internal Battery	Rechargeable and removable 950 mAh battery (3.7V)
Dimension	78 mm × 45 mm × 21 mm (14mm)
Weight	75g
Operating temperature	-20° to 55° C
Humidity	5% to 95% Non-condensing
GSM module	GSM 900/1800/1900Mhz or GSM 850/900/1800/1900Mhz
GPS Chipset	latest GPS SIRF-Star III chipset
GPS Sensitivity	-158Db
GPS Frequency	L1, 1575.42 MHz
C/A Code	1.023 MHz chip 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
Work time	60 hours in sleep mode and 10 hours in normal mode
LED	3 LEDs showing power, GPS, GSM status and other operation status.
Button	3 buttons(SOS/B/C) for making phone calls or sending SMS