Riken Keiki RX-8700 Portable Gas Monitor

Riken Keiki RX-8700 Portable Gas Monitor

The Riken Keiki RX-8700 Portable Gas Monitor stands as a beacon of safety in maritime environments, meticulously engineered to detect hydrocarbons, methane, and oxygen levels with unparalleled accuracy and efficiency. With its dual-range capabilities, it swiftly responds to varying concentrations, automatically adjusting readings from percentage Lower Explosive Limit (% LEL) to volume percentages (% Vol.), ensuring comprehensive monitoring. Equipped with cutting-edge technology, this monitor employs a Non-Dispersive Infrared (NDIR) sensor for hydrocarbon and methane detection, guaranteeing reliability even in inerted atmospheres. Complementing this, a galvanic cell oxygen sensor provides precise measurements ranging from 0 to 25% volume, vital for assessing oxygen levels in confined spaces.

Designed to endure the rigors of marine environments, the RX-8700 boasts an intrinsically safe build (ATEX/IECEx Exia IIC T4) and MED certification, coupled with an IP-67 rating for water and dust resistance. Its robust internal sample pump, capable of extending up to 30 meters, ensures thorough sampling in diverse settings. Operational flexibility is paramount, reflected in the choice of power sources—either a rechargeable lithium-ion battery for extended use or an optional alkaline battery pack. An intuitive digital LCD display provides clear readings, complemented by a suite of features including data logging, peak hold, and pump stop function. In essence, the Riken Keiki RX-8700 Portable Gas Monitor embodies reliability, precision, and versatility, safeguarding maritime operations by delivering real-time, accurate gas detection capabilities in the most demanding conditions.


  • Dual-range detection for hydrocarbons and methane
  • Auto-ranging IR sensor for precise readings from % LEL to % Vol.
  • Inert monitoring capability for reliable detection in various environments
  • Long-lasting galvanic type oxygen sensor with a range of 0-25% volume
  • NDIR sensor for hydrocarbon and methane detection in inerted and ambient atmospheres
  • Intrinsically safe design (ATEX/IECEx/ MED certified) and IP-67 rated for water and dust resistance
  • Strong internal sample pump with sample lines extendable up to 30 meters
  • Choice of power sources: rechargeable lithium-ion battery or optional alkaline battery pack
  • Loud alarm buzzer (95dB) and ultra-bright LED lights for hazardous condition warnings
  • Digital LCD display with backlight, datalogger, peak hold, and pump stop function
  • Compact dimensions (Approx. 154(W) x 81(H) x 163(D) mm) and lightweight design (Approx. 1.3kg)
  • Continuous operation: over 15 hours with lithium-ion battery, over 8 hours with alkaline battery pack

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Riken Keiki RX-8700 Portable Gas Monitor