The TMS-BASIC measures the speed of moving vehicles and transmits it via an RS-232 link to a display or control centre.

Equipped with an on/off relay with an adjustable trip threshold, it can both transmit the speed and activate a specific device in the event of overspeed.

This Doppler radar is non-intrusive: it can be installed above ground in a few minutes, without any civil engineering work.


Operation and strengths

  • Insensitive to light, colour, humidity or dust
  • RS-232 output + relay
  • Reaction time less than 50 ms
  • No maintenance required
  • Range from 120 to 150 m
  • Aluminium housing and IP65 rear connector
  • Lightweight, easy to install
  • Easy assembly: M8 nuts and bolts included

 Adjustable parameters:

  • direction of direction (incoming, outgoing or bidirectional)
  • unit of measurement: mph or km/h
  • minimum and maximum speed for detection: the radar only transmits the values within these limits
  • minimum and maximum speed threshold for tripping the relay: if the measured speed is within these limits, a contact is given
  • relay holding time
  • delay between measurements

Technical features

Detectable speeds from 5 to 250 km/h
Speed precision 98 %
Detection distance

cars: 80-100 m

trucks: 100-200 m

Operating temperatures from –40 °C to +75 °C
Power supply 10-60 V DC
Power consumption 55 mA @ 12-24 V DC
Frequency K-band: 24.1250 GHz
Transmitting power < 5 mW
Unit size 70 x 100 x 270 mm
Weight 1.3 kg, excl. cable and bracket
Protection level IP65
Baud rate 9,600 to 115,200 baud/s
User outputs

changeover relay contact



Use cases

  • Operating speed indicator panels
  • Lighting of station platforms when trains are travelling at a speed below a single given speed (SNCB project)
  • Modulation of tunnel lighting intensity according to the speed of users

A question, a request or a proposal?

A question, request or proposal?