"Zhavoronok XXI VEK" LLC develops and manuctures electronic Speed Limiting Device (SLD) since 2012.

We provide installallation,repair and calibration of automotive electronics: tachographs,Engine Control Units, GPS/GSM tracking systems since 2000 year and are recognized experts in this field.

In 2012 we started development and manufacturing the Speed Limitation Device model "Nadezhny Control 80" according to international standards.

At the moment more than 40 000 pcs. SLD "Nadezhny Control 80" are installed on various trucks, cars and utility vehicles by established network of over than 150 authorized partners.

In 2019 we decided to enhance the international presence and signed the Global Distribution Agreement with XMETRA company,that bears long experience witр international distribution of vehicles telematics. 

We are always open to discuss the new projects,business opportunities and partnership.



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Speed limitation for tracking, safety and security.
Limits speed in preset geozone
If seat belt isn't fastened,further driving is not possible.
Secures smooth immobilization by turning engine to idle mode
Dump truck with lifted cargo body
Transportation hazardous cargo.
Passenger door is not closed.
Lifting and handling equipment
Tire pressure is low
Active errors on the dashboard
Integration with driver fatigue sensor
Reading CAN bus data.
Smart Speed Limit Device NK-80


8:30-19:00 , Moscow
1-st Luberetskiy proezd, 2 Moscow, 109153, Russia. info@isa-nk.com