Riken Keiki RI-557 compact infrared gas monitor


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The Riken Keiki RI-557 compact infrared gas monitor is suitable for applications in research and lab, environmental monitoring and CO2 gas control. The RI-557 is a compact and light weight gas monitor with a standard dual range.

Riken Keiki RI-557 Specification

  • Category Fixed gas detector
  • Type Stand-alone gas detector
  • Target gas Combustible gases, CO2, CO
  • Detection principle NDIR
  • Sampling method Sample draw
  • Power source AC100V or AC220V ±10% 50/60Hz
  • Dimensions & Weight 220(W) x 200(H) x 320(D) mm, Approx 6kg
  • Operating temperature & Humidity 0 to 40oC, Below 90%RH (Non-Condensing)


Riken Keiki

The RIKEN KEIKI (KRI) product lineup includes more than 100 types of gas detectors and environmental monitoring products. Riken Keiki (RKI) Single gas detector range: 
  • 03 Series Smallest Single Gas Monitor
  • GasWatch 3 – Smallest Gas Monitor
  • 04 Series Smallest Toxic Gas Monitor
  • FP-31 Formaldehyde Gas Detector
  • SP-220 Gas Leak Checker for Combustible, Toxic, Freon and Fumigation Gases
  • SC-8000 Portable Toxic Gas Monitor
Riken Keiki (RKI) Multi-gas detector range: 
  • GX-3R Personal Gas Detector
  • GX-3R Pro Gas Detector with Wireless Communication
  • GX-6000 PID Gas Monitor
  • GX-2012 Confined Space Gas Monitor
  • GX-2009 Portable Multi Gas Detector
  • Gas Tracer PPM Leak Detector
  • Eagle 2 Multi Gas Detector for LEL, O2, H2S, CO, VOC & Toxics
  • Eagle Gas Detector
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