The new Riken Keiki GX-3R (available April 2019) is the smallest and lightest 4 Gas Confined Space monitor available today. With a size of 58 cm wide, 65 cm high and weighing 100g, the Riken Keiki GX-3R can be defined as true craftsmanship. The Riken Keiki GX-3R is perfect for confined space work as its size means it does not interfere with work even if it is attached in the breathing zone.

Battery Life:

The Riken Keiki GX-3R has a build in extended battery mode which allows the monitor to be used continuously for up to 40 hours before recharging. IP66/68 compliance, as well as a three-year sensor warranty, allows the Riken Keiki GX-3R to be used with confidence.


The GX-3R has 3 preset alarm settings per gas and an over alarm which allows the alarms to be set at EH40 workplace exposure limits plus an additional alarm for a higher detection range. The GX-3R internal data logger allows 3600 event logs and 300 hours which can be read out using an IrDA link. A loud 95dB alarms buzzer is also included.

Operating temperature range:

The Riken Keiki GX-3R has an operating temperature range of -40 degrees Celcius to +60 degrees Celcius (intermittent) or -20 degrees Celcius +50 degrees Celcius (continuous) allow the GX-3R to be used in many different environments and applications.

New Confined Space Monitor has 3 sensor design

The GX-3R uses 3 compact sensors including a brand new Electro-chemical Oxygen Sensor. The Riken Keiki GX-3R Confined Space Monitor will detect, Combustibles, Hydrogen Sulphide, Oxygen as well as Carbon Monoxide. A 3-year sensor warranty is now standard.


  • World's smallest and lightest 4 gas monitor
  • 3-year warranty
  • Only Approx. 100g
  • Water and dust resistant, IP66/68
  • Loud alarm buzzer 95dB at 30cm


Sebastian Kelderman