1. GPRS - Supports TCP/IP Protocol
2. Built in SiRFstar III and tri band (GSM 900/1800/1900 MHz or GSM 850/1800/1900 MHz)
3. 4 DI, 2 DO, 1 Mini USB port, 4 LED lights for GSM, GPS, GPRS and USB
4. Logs normal vehicle activities
5. Journey Start ; Idle Time ; Over Speed ; Journey End
6. Dimension: 95 x 89 x 35 mm

The Ct-AVL238 is a professional tracking system that has integrated powerful chips like the SiRFstarIII for GPS positioning - providing high sensitivity of up to -186 dBW and SIEMENS tri-band wireless module that provides global coverage and the needed reliability.

Designed to track children and the elderly, our GSM / GPS-equipped pTrac sends an emergency SMS with its coordinates to up three cell phones at the touch of its panic button. The unit also allows for two-way calls from these phones. And when the device is monitored by a map-equipped control center, concerned loved ones can receive a massage with the unit's exact street address.

In addition to personal trackers, we offer GSM/GPRS/GPS-endowed vehicle-tracking systems-such as our Ct-AVL238. This device can send exact coordinates in SMS It also has a compact design for discreet installation.

GSM LED Status
OFF	No operation
600ms ON / 600ms OFF	No SIM card present / No PIN entered / Network login processing
75ms ON / 3s OFF	The mobile is registered to the GSM network
75ms ON / 75ms OFF / 75ms ON / 3 s OFF	GPRS PDP context activated
500ms ON / 25 ms OFF	Packet switched data transfer is in progress
ON	Data call
GPS LED Status
500ms ON / 500ms OFF	No GPS signal received
ON	GPS ready
OFF	No GPS data from hardware
GPRS LED Status
200ms ON / 200ms OFF	GPRS transmission in process
OFF	GPRS disconnected
ON	GPRS connected
USB LED Status
ON	USB cable connected
OFF	USB cable disconnected
Physical Characteristics
Unit Size	95L * 89W * 35H (mm)
Weight	300g
Cover	High Grade PC + ABS
Interface	4 DI, 2 DO, 1 Mini USB port, 4 LED lights for GSM, GPS, GPRS and USB
Case Environmental Characteristics
Operational Temperature	-10°C to +70°C (board temperature)
Storage Temperature	-25°C to +85°C
Electrical Characteristics
SIEMENS GSM module	900/1800/1900(SIEMENS MC55) or 850/1800/1900(SIEMENS MC56)
Input Voltage	+12V ~ +24V DC
Power Consumption	Standby: 12 Volt 20mA ; 12 Volt 30mA (Peak) Transmitting: 12 Volt 100mA ; 12 Volt 130mA (Peak)
Backup Battery	Rechargeable Li Battery at 1500mA
Backup Battery Life	Approx. 6 to 8 hours with GPS and Communication ONLINE Depends on set tracking interval, the estimated battery age, and time last charged
Memory Backup	Flash Memory 2MB
Outputs	2 negative outputs (500mA max per output)
Inputs	1 ACC Input, 1 Panic Input (active low to activate input) 2 General Inputs (active low / high to activate input)
SiRFstarIII GPS Specifications
Frequency	L1, 1575.42 MHz
Tracking Sensitivity	-159 dBm or -186 dBW
Protocol	NMEA0183 Ver3.0
Channels	Up to 20
Position	10 meters
Hot Start	< 1 sec average
Warm Start	< 35 sec average
Cold Start	< 42 sec average