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Pneumatic tube cycle monitoring
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Pneumatic tube cycle monitoring
Technical Specification
Supplied components
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Compatible with the Eco-twin, Eco-pilot and Eco-multi, TUBES is a mobile device ideal for temporary cycle counting, designed to count bicycles in two different environments:


TUBES used on shared road

Two tubes are laid 30 cm (12 in) apart over the road perpendicular to the traffic flow.  Cycles are very accurately identified in mixed traffic such as buses, cars and motorcycles.


TUBES used on greenways

One tube is laid on the cycle path perpendicularly to the traffic flow. When a cycle passes over the tube, the system recognises the two wheels and makes a count. Two tubes may be used to detect the direction of cyclists.

TUBES has an accuracy of +/-5% on shared roads (motorcycles are ignored) and +/-5 % on dedicated cycle paths, even for groups of cyclists.



  • On road
  • Cycle lanes
  • Green ways
  • Cycle paths





Tube length: 6 metres (20 ft)

Tube: 10 mm rubber (0.4 in), stainless steel.  A special insert in the tube ignores signal rebounds that may be generated by a fast car or heavy lorry.

Protective box: 32 x 21 x 8 cm (13 x 8 x 3 in)

Battery life of the logger: 10 years

Weight: 1 kg (2.2lbs)

Working temperature: -20° C to + 50° C (-20° F to 140° F)

Waterproof: IP 6.8


Sensitivity and time out are factory set for maximum speed of 35 km/h (22 mph) and can be modified to 42 km/h (26 mph).

Ground preparation:  Four 6 mm holes must be drilled into the ground for the nails and clamps that secure the system in place.  Installation of the four clamps and two tubes takes less than 15 minutes.



  • Two pneumatic tubes
  • Transducer
  • Eco-Pilot or Eco-Twin logger
  • Four clamps
  • Durable stainless steel box
  • Magnetic Key