Comprehensive line of Interior Sensors for Railway Vehicles

With growing requirements on quality of interior air in the area of home-building, this trend is shifting to the means of transport, as well. Therefore, railway vehicles are no exception. Based on requirements from this segment, we have developed a complete range of interior sensors for measurement of temperature, concentration of CO2, relative humidity of air, atmospheric pressure and concentration of VOC (volatile organic compounds). The values detected are used for monitoring and efficient controlling of the quality of air and environment in passenger compartments of trains, trams, buses, trolleybuses and other means of public transportation.

All these interior sensors meet requirements of the railway standards: EN 61373, EN 50121-3-2, EN 50155, EN 45545-2 and NFPA 130.

The following versions of interior sensors are designed for measurement of individual variables: 

Temperature reading is ensured by the interior sensor series:

  • KS 100 – resistance output
  • KS 500 – 4 to 20 mA output
  • KS 700 - 0 to 10 V output
  • KST 102 - RS 485 output
  • KST 104 - CANopen output

Temperature and relative humidity reading is ensured by the interior sensor series:

  • KSTH 102 - RS 485 output
  • KSTH 104 - CANopen output

Temperature, relative humidity and CO2 concentration reading is ensured by the combined sensor series:

  • KSTHC 102 - RS 485 output
  • KSTHC 104 – CANopen output

Temperature, relative humidity, atmospheric pressure and VOC concentration reading is ensured by the combined sensor series:

  • KSTHPV 102 – RS 485 output
  • KSTHPV 104 – CANopen output

Temperature, relative humidity, atmospheric pressure and CO2 and VOC concentration reading is ensured by the combined sensor series:

  • KSTHCPV 102 – RS 485 output
  • KSTHCPV 104 – CANopen output

With the use of the Temperature sensors, Combined temperature and relative humidity sensors and Combined temperature, relative humidity and CO2 sensors, and now nowly atmospheric pressure and VOC sensors, we secure e.g.:

  • creation and preservation of comfortable climate for passengers in railway vehicles
  • establishing and maintaining high quality of air
  • removal of mists of windows and wall of train units
  • energy savings based on evaluation of measured values by the air conditioning unit
  • higher control system efficiency
  • costs savings

The sensors meet requirements of railway standards and type tests are carried out by the notified body:

  • Insulation test in accordance with EN 50155
  • Shock and Vibration test in accordance with EN 61373
  • Electromagnetic compatibility in accordance with EN 50121-3-2
  • the plastic box and PCB materials meet a set of requirements for the R24 materials in according to the table 5 for the fire hazard level HL1-HL2-HL3 of EN 45545-2:2014
  • Fire protection and life safety in accordance with NFPA 130

The design of the comprehensive line of interior sensors for railway vehicles ensures:

  • temperature, relative humidity, CO2, atmospheric pressure and VOC measurement in small aesthetic design
  • better air flow around the temperature and humidity sensing element
  • significantly faster time response of temperature and relative humidity
  • convenient installation and removal of sensor

We will be glad to provide you with more information on these Interior Sensors for Railway Vehicles as well as on both special and standard temperature sensors designed for this segment at INNOTRANS 2018 trade fair.

You can find as in Hall 6.2, Stand 105.

For more information please contact us via cell no.: +420 724 810 020 or via e-mail address: randysek@sensit.cz.


Date published: 23/10/2020

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SENSIT s.r.o.

Školní 2610, 756 61 Rožnov pod Radhoštěm

+420 571 625 571



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