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MKN 21
Mobile traffic light.
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General description

A pair of mobile traffic lights is used at road construction sites and other road sections when a one-way traffic arrangement is necessary.

Both traffic lights operate independently, with a battery power supply. For lower energy consumption, traffic light heads are assembled from LED diodes. The traffic lights are mutually synchronized via wireless radio-wave communication.

The traffic light operation adjusts automatically according to the traffic density. A microwave radar detector is used as a built-in traffic sensor.

The function parameters may be adjusted through a keyboard and built-in LED display on the spot directly, depending on given circumstances.


Technical data


the length of the roadworks site (m):
 30, 50, 100, 150, 200, 250, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500.
the speed of the vehicles driving by (km/h):
25, 30, 40, 50, 60
the basic duration of the green light (s):
7 ÷ 25
the extension of the green light's duration (s):
 4 ÷ 15
maximum duration of the green light (s):
10 ÷ 180
Fixed duration of the green light A / B (min):
1 ÷ 30
time at the moment
the time of switching on the system
the time of switching off the system
switching the sensor off/on
switching the fixed green light off/on


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