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Riken Keiki HS-04

A portable gas monitor designed to measure hydrogen sulfide.

Small and lightweight ATEX-certified portable gas detector for reliable gas monitoring. Use of the detector is simple and intuitive. The filter and sensor are replaceable which ensures long lifespan and affordable upkeep.


  • Type: Multi Gas
  • Detection Gas: H2S
  • Principle of detection: Electrochemical type
  • Detection range: H2S: 0-30 ppm / 30 – 200
  • Alarm setpoints: H2S: 5 ppm, 2: 30 ppm, 3: 100 ppm / TWA 1 ppm / STEL 5 ppm
  • Display of alarm: Flashing light / buzzer / vibration
  • IP rating: IP66/67
  • Approvals: IECEx/ATEX/CE
  • Power source: 2 x AAA alkaline
  • Battery life: Approx.9000 hours
  • Dimensios: Approx. 54mm(W) x 67mm(H) x 24mm(D)
  • Weight: Approx. 93g
  • Operating temperature range: -20℃ to +50℃ (no sudden changes)(Approx. 15-minute temporary use environment: -40℃ to +60℃[no sudden changes])
  • Operating humidity range: 10 to 90%RH (no condensation)(Approx. 15-minute temporary use environment: 0 to 95%RH[no condensation])
  • Hydrogen sulfide (H2S)
  • Hazardous area (ATEX)

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Kjell Jernström

Sales Manager

+358 40 900 11 60
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Sini Maunu-Carrion

Development Manager
(Sales, marketing, product and service development)

+358 40 900 11 62
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