DKS GmbH - Produkte
Trust is good. Measuring is better!
Designation: combustible gas, O2, H2S, and CO

GX-8000: Portable Marine Multi Gas Monitor for combustible gas, O2, H2S, and CO

GX-8000 Portable Multi Gas Monitor

The Riken Keiki model GX-8000 sets a new industry standard for rugged, reliable, portable gas detection. It's tough, water proof design utilises features based on over 72 years of gas detection design experience, to assure reliability when protecting people and property from all kinds of harsh gas detection applications.

The GX-8000 is the latest sample drawing gas detector from Riken Keiki and consolidates several of the older classic models, such as the GX-111GX-111, NP-237HNP-237H, GX-7GX-7, GX-85NGX-85N, OX-62BOX-62B, OX-1OX-1, OX-415OX-415, OX-226OX-226, GP-226GP-226, etc... into one unified and improved specification. It's versatile design makes it simple to configure for 1-5 gases and the sensor compartment makes servicing sensors and filters quick and simple. Designed to international standards, CE marked and certified to ATEX / IECEx / MED (Wheelmark) approval, means it is perfectly suited to challenging industrial and marine applications.

The compact, light weight design makes it comfortable to carry using the neck / shoulder strap, and the optional waist strap allows for hands free use. The unit is easy to operate single-handedly and the powerful built-in pump has a fast 750ml / minute suction rate. A 30m length hose takes only (approx.) 30 seconds to sample a potentially hazardous or toxic gas.


  • Realtime detection of up to 5 ranges for combustible gas, 100%vol./ 100%LEL, O2, H2S, and CO
  • Large simultaneous display with auto back lighting
  • Strong sample drawing capability
  • Loud alarm buzzer with 95dB
  • 3 bright LED alarm lamps
  • ATEX Exia II CT4 approved
  • Water and dust resistant IP67
  • Lithium-ion rechargeable battery
  • Compact and light weight
  • Ergonomic design with wrist strap for hands free operation
  • Datalogging standard




  • Confined Space Entry
  • Refineries, Petrochemical, Chemical Plants
  • Oil Tanker, Gas Carrier, Bulk Carrier
  • Chemical Tanker
  • Wastewater Treatment
  • Fire Services
  • Telecommunication Services
  • Power Plants
  • Gas Plant, Gas Supplier Services
  • Utilities
  • Coating Field
  • Fuel Cell Facilities


Target gas Combustibles
(CH4 , i-C4H1O , H2 , others)
Hydrogen Sulfide
Carbon Monoxide
Detection principle Thermal Conductivity Catalytic Combustion Galvanic cell Electrochemical Electrochemical
Detection range
0-100 vol%
0-100 LEL%
Gas alarm N/A 1st : 10%LEL
2nd: 50%LEL
1st : 19.5%
2nd: 23.5%
1st : 10.0ppm
2nd: 30.0ppm
TWA: 10.0ppm
STEL: 15.0ppm
1st : 25ppm
2nd: 50ppm
TWA: 25ppm
STEL: 200ppm
Types of alarm Gas alarm : Latching, 2 alarms
Failure alarm: Flow failure, Sensor failure, Battery failure, Circuit failure, Calibration failure
Display of alarm LED: -Flashing LED's
Buzzer:: -Buzzer sounds alternates between a low and high pitch
Visual display: -Indication value flashes. Alarm message displays and flashes.
Alarm sound More than 95dB (A) at 30cm
Display Digital LCD with auto backlight
Digital display (7 segments) and digital bar graph (25 segments)
(50 segments with single gas versions GX-8000 Type LEL & Type O2)
Sampling method Sample Draw, Minimum 0.75L/min
Power source Lithium-ion battery as standard (fully charged in 3 hours)
Optional 3pcs AA alkaline battery pack also available (Alkaline battery pack standard with single gas versions:
GX-8000 Type O2 / GX-8000 Type LEL -Lithium-ion battery optional)
Continuous operation Lithium-ion battery: more than 12 hours (GX-8000 Type O2, more than 20 hours)
AA alkaline battery pack: more than 6 hours (GX-8000 Type O2, more than 12 hours)
Operating temp & humidity -20~+50°C, -4-+122°F below 95%&RH (Non-condensing)
Dimensions & Weight Approx. 154(W) x 81(H) x 127(D) mm, Approx. 1.1kg with Lithium ion battery (Alkaline battery 0.9kg)
Approx. 6.1"(W) x 3.1"(H) x 4.9"(D), Approx. 2.4lb with Lithium ion battery (Alkaline battery 2.0lb)
Ingress proof rating IP67
Explosion proof Intrinsically safe Exia II CT4
Approvals IECEx, ATEX, MED (Wheel Mark), CE, TIIS, HK
Additional features Activity indicator (pilot indicator and pump driving indicator), Pump stop function, Bump test function, IrDA communication, Data logger, Password protection (GX-8000 single gas versions Type LEL & Type O2 with confidence beep and LED flash (once every minute)

« Back to overview
This email address is being protected from spambots. You need JavaScript enabled to view it.