User's Manual

4
1.3 Hardware specification
Item Description
Model GTR-128 GTR-129
Back-up Battery No back-up battery, but
magnetic mount instead
Li-Polymer 320mAh
Unit Weight 77g 78.5g
Temperature Operation
-30
℃
~ + 70
℃
-30
℃
~ + 60
℃
(0
℃
~ + 45
℃
for charging)
Storage
-40
℃
~ + 70
℃
-40
℃
~ + 60
℃
Dimension 61 mm X 38 mm X 19 mm
GPS receiver high performance GPS chipset
Communication Quad-Band GSM (850/900/1800/1900 MHz)
GPS Antenna Built-in patch ceramics antenna
GSM Antenna Built-in Pi-Fa antenna
Protocol SMS/GPRS (TCP/UDP)
Power +9~36 V
Built-in Memory 32 Mb
Emergency Input Negative trigger x 1
Ignition (ACC) Input Positive trigger x 1
Digital Input Port Negative trigger x 1
Digital Output Port Negative trigger x 1 (300 mA)
Fuel sensor Input Port Analog Input x 1( 0~28V), 12 bits resolution
Sensor Motion sensor
Humidity 5% to 95% Non-Condensing