Riken Keiki RKI RX-8000 Marine Portable HC/O2 Sample Draw Gas Detector


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RX-8000 Marine Gas Monitor, Portable HC/O2 Sample Draw Gas Detector

The RX-8000 sets the new industry standard for rugged, reliable portable gas detection. It’s tough, water proof design utilized features based on years of gas detection design experience, to assure that the instrument will operate properly to protect workers and property in all kinds of harsh gas detection applications.


Real-time detection combustible gas, 100%vol./ 100%LEL & O2
Large simultaneous display with auto back lighting
Strong sample drawing capability
Loud alarm buzzer with 95dB
3 bright LED alarm indicators
ATEX Exia II CT4/MED approved
Water and dust resistant IP67
Lithium-ion rechargeable battery
Compact and lightweight
Internal sample draw pump
Ergonomic design with wrist strap for hands free operation
Datalogging standard

Riken Keiki RKI RX-8000 Specification

  • Category Portable gas detector
  • Type Multi gas
  • Sampling method Sample draw
  • Explosion proof Intrinsically safe
  • Ingress proof rating IP 67
  • Approvals ATEX, IECEx, MED
  • Power source Rechargeable battery
  • Optional: Alkaline battery 3-AA size
  • Continuous operation Rechargeable battery: More than 15 hours
  • Alkaline battery: More than 10 hours
  • Dimensions & Weight Approx. 154(W) x 81(H) x 127(D) mm
  • Approx. 1.0 kg
  • Operating temperature & Humidity -20 to 50oC, Below 95%RH


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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Target Gas
Combustibles (i-CH410 or CH4 calibration)
Detection Principle
Non-Dispersive Infrared (IR)
Galvanic Cell
Detection Range (Increments)
0-100vol% (0.5vol%)
0-100%LEL (0.5%LEL)
0-40.0% (0.1%)

Range 0-25%: ±0.7
Range 26-40%: ±3.0

Response Time
T90 within 30 seconds
T90 within 20 seconds
Sampling Method
Sample Draw: Minimum 0.75L/min
Gas Alarm

1st: 10%LEL
2nd: 50%LEL

1st: 19.5%
2nd: 23.5%
Display of Alarm LED: LED’s flash
Buzzer: 95dB
Visual Indication: Indication value flashes. Alarm message displays and flashes
Display Digital display and bar graph
Power Source Lithium-ion battery (3 hours for a full charge): Standard
AA Alkaline battery (qty 3): Option
Continuous Operation Lithium-ion battery: 15 hours
AA Alkaline battery: 10 hours
Operating Temp & Humidity -20 ~ +50C (-4 ~ +122F) below 95%Rh (non-condensing)
Dimensions & Weight 6.1″W x 3.1″H x 5″ D, 2.4lbs
Ingress Proof Rating IP67
Explosion Proof Ex ia IIC T4 Ga
Approvals IECEx, ATEX, MED, Complying to IEC60079-29-1, EN50104
Additional Features Indication to show energizing (pilot indicator and pump driving indicator), activating confirmation IrDA communication, data logger, password protection


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