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RKI Instruments OX-94 Portable Gas Monitor, O2 - 72-0005RK

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RKI Instruments
RKI Instruments OX-94 Portable Gas Monitor, O2 - 72-0005RK
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RKI Instruments OX-94 Portable Gas Monitor, O2 - 72-0005RK

RKI Instruments OX-94 Portable Gas Monitor, O2 - 72-0005RK


72-0005RK OX-94 Portable Gas Monitor, O2 by RKI Instruments

The model OX, CO, and HS-94 are portable instruments for the detection of oxygen deficiency, carbon monoxide and hydrogen sulfide respectively. These intrinsically safe units are compact, highly accurate, and have microprocessor controlled function in slimand light weight package. Their small size lets you wear them as you work, clipped to your pocket or belt for hands free operation.


  • Pocket size, light weight design
  • Digital LCD readout
  • Microprocessor controlled
  • Alarm level indication by buzzer and display
  • Low Battery warning by buzzer and display
  • Peak value function
  • TWA, STEL value for toxic versions
  • Hands free monitoring (pocket worn)
  • Contunious diffusion sampling
  • Touch operated controls
  • Intrinsically safe circuitry

*Please note we can only ship RKI products to customers within the United States

Gas detected
Oxygen (O2)
Carbon Monoxide (CO)
Hydrogen Sulfide (H2S)
Detection Range
0-40.0% vol
0-150ppm (Standard Range) extended up to 500ppm
0-30.0ppm (Standard Range) extended up to 99.5ppm
Detection Principle
Galvanic cell
Electrochemical cell
Sampling Method
Diffusion Sampling
Response Time
Within 20 seconds (T90)
Within 30 seconds (T90)
Indication Accuracy
Better than ± 0.5% vol
± 10% of full scale against standard range
± 5% of full scale against standard range
3 digits on LCD, 0.1% digit
3 digits on LCD, 1ppm/digit
3 digits on LCD, 0.5ppm/digit
Alarm Points
19.5% low, 23.5% high
25ppm, TWA 25ppm, STEL 400ppm
10ppm, TWA 10ppm, STEL 15ppm
Low Battery Alarm
Continuous buzzer and indication of battery power remaining
Operating Temp.
-10°C ~ + 40°C (14°F - 104°F)
Alkaline batteries (AAA) 2 pcs
Continuous Operation (hours)
Approx. 80 hours
Safety Design
Intrinsically safe, Class1, Div 1, Group A,B,C,D
Dimension & Weight
145(W) x 44(H) x 25 (D)mm, 5.7(W) x 1.7(H) x 1.0(D)inch, 0.12kg, 4.23 oz. (including batteries)
Standard Accessories
AAA alkaline batteries x 2
Shoulder strap
Clip for belt or pocket
Manual back light for LCD display (auto back light in alarm condition)
Peak HOLD function
Sensor connection check function

Datasheets & User Manuals

Questions & Answers

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