At TrackSchoolBus, .we use industry leading School Bus Tracking System hardware to ensure best performance. Why? It is because we care for children, and value their safety above anything else. The device we use is being provided by National Meter Mfg. Co (, leading provider of commercial GPS tracking devices in India.

  • Embedded GPS and GPRS Antenna
  • IP 54 Compliant Rugged ABS Body
  • Quad band Class 12 GPRS Modem
  • GPS with AGPS support
  • USB 2.0 Device Port
  • RS-232 port
  • CAN Bus Support
  • Analog Input 0-10V or 0/4-20mA
  • 3 Axis Accelerometer
  • 4 Digital Inputs, 2 Digital Outputs
  • In-built application firmware to Integrate Mi-fare Card reader (For Student tracking in School Bus Applications)
  • Distance measurement from odometer Sensor by setting K-Factor. GPS based distance measurement in addition
  • Device Monitoring / Configuration through USB using Android based Application on Phone or Tablet


  • Relay 12V @30A 1C/O
  • Panic Switch Buzzer
  • Mi-fare Card Reader / Writer RFID Reader
  • RFID Reader


Technical Specifications
MCUCoreARM Cortex –M4 @ 48MHz
 Memory256KB Flash, 60KB RAM
Memory for LogsTypeOn board Data Flash 2 M Byte / 15000 logs
AccelerometerType3 axis accelerometer with digital interface
 AccelerationUp to +/- 8g
 Resolution10 bit
GPRSFrequencyQuad Band
 GPRS ClassClass 12
 TCP IPYes, Internal to Modem
GPSFrequency1575.42 MHz
 Output formatNMEA0183
 Accuracy5 Meters Average CEP (Circular Error Probable)
 SpeedUSB 2.0
 ConnectorMicro USB AB
RS-232Baud rate2400 to 115200 configurable
 Hardware handshakingNo
CANSpeed250 / 500 Kbps
 StackAs per ISO 15765-4
Analog InputsInput Range4-20mA Current and 0-30V Voltage
 Calibration and scalingYes
Digital InputsNo. of Inputs4
 Voltage Threshold0-3V Low, 3 to 36V High
 Alternate FunctionsOdometer Pulse, Ignition, Panic
Digital OutputsNo. of Outputs2
 Alternate FunctionsGeo Fencing, Buzzer
 TypeOpen collector, Fault tolerant
 Max. Current200mA DC Max.
Internal BatteryTypeLi-ion Rechargeable
 Capacity1150 mAH
 Back-up Time6 Hrs. with GPRS data rate of 2 minutes
RTC BatteryTypeLithium, Primary
Power SupplyTypeSwitching Regulator
 Input Voltage Range9 to 40 VDC
 Power Consumption3 Watt Max.
Protection CircuitsForShort circuit, over current, Load dump, Reverse polarity
IndicationsLEDDual colour LEDs for Power, GPS, GPRS
TemperatureOperating Range-10 Deg. C to +60 Deg. C
Dimensionsin MM115 X 65 X 30 mm.
EnclosureMaterialPlastic ABS + PC
 Ingress ProtectionIP 54
Weightin Kg.320 grams (with Packing) Approximately

Mi-Fare Card Reader Specifications for Student Tracking in School Bus Application

MountingExternal to Tracking Unit. (Internal Mounting on Request
Operating Frequency13.56 MHz
Supported standardsISO 14443A
Communication InterfaceRS-232
Communication protocolProprietary ASCII, 9600 Baud, 8, N, 1
Supported TAG (RFID card)MiFARE Standard, MiFARE 4K, MiFARE Ultralight
Reading DistanceUp to 70mm
Operating Voltage+5 V DC +/- 10%
Supply SourceFrom Tracking Unit.


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