This modem have 2 editions:

1. personal edition,can monitor 2-3 vehicles at the same time;

2. business edition,can monitor 40 vehicles at the same time.

Specification:

GSM class 4
Scheme: CS1 - CS4
Accord with SMG 31bis technical criterion
Cellular frequency
M11S111
GSM phase2/2+, GSM 900, and GSM 1800
Data
CSD downlink/uplink up to 14.4Kbps
Interface:
Antenna 50Ω SMA female interface
Serial port DB9 (RS232)
LED: power, ring, data
UIM/SIM 1.8V/3V
Power:
Power supply: DC 5V-25V, typical DC 9V 1A
Power consumption:
Peak: ＜ 2.5mA at +9V DC
Speech: 300mA at +9V DC
Sleep: 3 to 5mA at +9V DC
Software:
Device management: AT command set
Physical:
Operating temperature:
Work temperature: -20?～55?C
Storage temperature: -25?～70?C
Humidity: 90% maximum (non-condensing)
Dimension item: 75 x 50 x 16mm (5.3 x 3.7 x 1.4in)
Packaging: 260 x 190 x 65mm (10.3 x 7.5 x 2.6in)
Weight item: 200g
Packaging:
Electromagnetic compatibility
Anlistatig test: class 3
Radio electromagnetism test: class 3
Others:
Warranty: one year
Package contents: series modem
DB9 serial cable
DC 9V1A power adapter
Antenna
CD-ROM with product documentation