Analogue GPS Speedometer

High-Quality GPS Speedometer For Automotive And Marine Applications

Hummingbird's GPS Speedometers provide a quick-to-install vehicle-independent speed and distance readout in automotive and marine applications.

Using data received from the Global Positioning Satellite network the GPS Speedometer calculates accurate ground speed and displays it on a clear-to-read analogue display.

This high-technology solution eradicates the dependency on vehicle specific parameters, thereby reducing installation time and eradicating the need for periodic calibration.

Powerful Performance

Designed for harsh automotive and marine environments the speedometer features an easy to read dial and user selectable yellow or red backlights for night time use.

The ability to track 12 satellites simultaneously, enhanced receiver sensitivity and active antenna result in fast time-to-first-velocity-calculation as well as the ability to operate in the harshest RF environments such as canyons cities and harbours. Speed errors will occur in RF blackout zones such as tunnels. In the event of an RF blackout the speed readout will go to zero.

Three-dimensional GPS velocity calculations are accurate to 0.2km/h. 

Hummingbird's GPS Speedometer can be supplied with the readout in kilometers per hour, miles per hour or knots.  Odometer and trip functions are available.

Rugged Hardware

Hummingbird's GPS Speedometer is supplied in a rugged ABS plastic enclosure that is water resistant. Rubber seals isolate the interior of the speedometer from the environment to prevent water vapour build-up and mildew.

Antenna connection for the active antenna is provided through a gold-plated threaded SMA connector. The active antenna is available in two options:
  • magnetic mount, suitable for mounting in the interior of the vehicle, for example under the dashboard, rear window sill or fibreglass instrument panel.
  • bulkhead mount, suitable for exterior mount, for example on the roof of the cab.
Power to the unit and back-light ground are provided through four colour coded wires.

For optimum performance the antenna should be mounted horizontally and upright, and should have a clear view of the sky.

The speedometer fits a 85mm (3 3/8”) diameter hole and the face is available in black or white.

Performance Specifications

  • Available in kilometres per hour, miles per hour and knots
  • Speed range: 120km/h; 100mi/h; 20knots; 60knots
  • General: 12 channel tracking receiver
  • Update rate: 4Hz
  • Accuracy, horizontal: < 5m (50%), < 8 (90%)
  • Accuracy, altitude: < 10m (50%), < 16 m (90%)
  • Accuracy, velocity: < 0.06m/sec = 0.22km/h
  • Acquisition, after loss of lock: < 2s (90%)
  • Acquisition, first time power applied: < 38s (50%), < 42s (90%)
  • Acquisition, temporary loss of power: < 10s (50%), < 13s (90%)
  • Operational limits, altitude: 18000m
  • Operational limits, Velocity: 300km/h
  • Available with white or black bezels
  • User selectable red or yellow night light

Electrical Characteristics

  • Input voltage: 12V
  • Power consumption: maximum 2.5W (200mA @ 12V) – night-light on, including antenna
  • Battery backup: > 20 days

Physical Characteristics

  • Bezel 105mm diam; case 85mm diam; depth 40mm or 54mm incl bezel
  • Antenna: 51mm (L), 42mm (W), 14mm (H)
  • Antenna cable length: 3-5m

Environmental Specifications

  • Operating temperature: -40°C to +85°C
  • Storage temperature: -55°C to +105°C
  • Humidity: 5% to 95% R.H. non condensing at 60°C

Interface Specifications

  • Red: input voltage (10V to 28V)
  • Black: ground (0V)
  • Yellow: switched power
  • Orange: red-light (ground to operate)
  • Blue: yellow-light (ground to operate)
RF interface:
  • SMA (compatible connector supplied with antenna)
  • Magnetic mount or bulkhead mount antenna options available


Hummingbird Electronics has designed the product for use in a broad range of applications. It is however solely the customer's responsibility to evaluate the device and determine it's suitability in their end application.

Hummingbird Electronics does not suggest or make any recommendation as to the suitability of parameters that determine angle, height, impact, speed, force, accident, harsh braking, roll-over or rate-of-turn events, input or output voltage or current. Parameter values stated or implied in this document are for explanation only and should not be taken as typical or representative of a real world situation.


Products are not authorised for use in critical safety or other applications where a failure may reasonably be expected to result in personal injury, loss of life, or catastrophic property damage. If a customer uses or sells the products for use in any such applications, the customer acknowledges that such use or sale is at customer's sole risk. The customer will indemnify, defend or hold Hummingbird Electronics and their electronic component suppliers/assemblers harmless from and against any and all liabilities and costs arising out of or in connection with use of product or sale.
Analogue GPS Speedometer
  • Analogue GPS Speedometer
  • Analogue GPS Speedometer

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