GPS Data Logger

Simple - Economical - Reliable

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May 8: NEW Evo3 Multi Event logger with integrated GPS, USB and custom membrane keypad. Raised buttons, tactile 'click' feel, high contrast graphics and excellent durability. More

April 4: GPX File Support Available Now. GPX files are compatible with many applications including Google Earth and Garmin Mapsource. Click here for more information about the GPX format. Click here for our support page.

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GPS Data Logger Specifications

All of the following specifications have been tested in the field.

Specifications are conservative and in most cases the GPS Data Logger will perform better than specified.

Note: Due to constant product development, specifications are subject to change.

Functional Specification:

NMEA sentences required: $GPRMC (Position, Time, Date, Speed)
$GPGGA ('ALT' models)
$PGRMZ ('BARO' models)
DIP Switch: Easily accessible, inside battery compartment.
Functions can be selected in the field, during operation.
Information Stored: Position
Position, Time, Date
Position, Time, Date, Altitude ('ALT' and 'BARO' models)
Storage Mode selected by DIP switch 4.
Speed Filter: Disables Data Save if speed falls below a threshold value.
Speed Filter enabled/disabled by DIP switch 1.
Speed Filter Threshold: 4 knots (Firmware revision 2.2 and older)
2 knots (Firmware revision 2.3 and up)
Speed Filter enabled/disabled by DIP switch 1.
Automatic Save: Reduces storage of redundant points to save memory.
Very effective for vehicle-based use.
Auto Save enabled/disabled by DIP switch 2.
Timer Save: Normal (Typically 1 to 2 seconds) or Timed.
Storage Interval can be varied to save memory.
Timer Save enabled/disabled by DIP switch 3.
Timer Save Interval: Default: 10 seconds
5s, 10s, 30s, 1m, 2m, 5m, 10m, 15m selectable
User programmable via Download utility.
Serial Number:
(Firmware revision 2.3
and higher)
4-character serial number, eg: 0001, 1234, 9999, ABCD
User programmable via Download utility.
NMEA baudrate: 4800bps
Download baudrate: Selectable up to 115200bps
Position resolution: 2 metres (Except 'SRVY' models)
20 centimetres ('SRVY' models)
Event sources: 1 (Except 'BARO' and 'ME' models)
3 - 1 Internal, 2 External ('BARO' models only)
5 ('ME' models only)

EVENT Button: All Models

  • Stores a timestamped position whenever pressed, independent of any other options selected
  • Events may be separated and saved in Ozi Explorer Waypoint file format
  • Events may be separated and saved in Ozi Explorer Event file format

Electrical Specification: All Models

Battery: 9 Volt Alkaline PP3/1604 (Duracell® PC1604 Supplied)
Battery input is reverse polarity protected.
Easy battery replacement - no tools required.
Battery Life: Better than 10 days operating.
Better than 1 year in Standby mode.
Up to 4 years if External Power used.
External Power: 10Vdc to 32Vdc nominal (7.2Vdc to 36Vdc allowable)
Reverse polarity protected.
Supply Current: Operating: typically 1.2mA
Standby: typically 50uA
Auto Standby: Automatically power-down if no data received from GPS.
Automatically power-up when data is received.
Connector: DB9M, same as PC serial port
Pin 2: Receive Data
Pin 3: Transmit Data
Pin 5: Ground
Pin 9: External Power input

Physical Specification: All Models

Dimensions: 66 x 112 x 28 millimetres
(2.6 x 4.4 x 1.1 inches)
Battery Compartment: Contains battery and DIP switches.
Reliable slide-on cover.
Easy access, no tools required.
Weight: 150 grams including battery
Colour: Light Grey
Case Material: ABS

Data Logger

Minimum Requirements:

  • Pentium-class PC, Minimum 90MHz, 16MB RAM
  • 10MB HDD space
  • Spare RS-232 COM port
  • Windows 95, 98, NT 4.0, 2000, XP, or higher
  • GPS receiver with NMEA 0183 data output
  • Data Cable with connector to suit your data source
    • Use the 4-wire cable supplied, to make your own cable
    • GARMIN owners may choose one of our optional Garmin power/data cables
    • We can supply power/data cables for many GPS receivers
    • Use your existing instrument to PC cable if you have one
    • Purchase a genuine accessory cable from your GPS supplier