Gas Detection For Life

Leading gas detector manufacturer


RKI banner
OX-07 (OX-82 replacement)

OX-82 has been discontinued. OX-07 is the suggested upgrade. 

The following OX-82 literature is available for download

OX-82 DatasheetOX-82 Manual

OX-07 Oxygen MonitorThe Model OX-07 personal oxygen indicator and alarm is a pocket-sized, lightweight instrument designed for uninterrupted monitoring of oxygen levels. Carried in a pocket, the OX-07 provides hands-free oxygen level and an alarm whenever oxygen level falls below a preset point. A side-mounted jack accepts a plug that connects to an optional alarm buzzer to alert the wearer even in environments with a high background (ambient) noise level.

An alarm for low battery condition warns the user when power is low. The top-mounted oxygen sensor is easily detached for mounting on an optional extension cable to provide remote sampling in tanks or manholes prior to entering these or other potentially hazardous areas.
Data sheetManuals


  • Intrinsically safe ExiaIICT3
  • Extension cable available
    (5m standard, 10m, 20m and 30m)
  • Maximum 5000 hours of continuous operation by 2 "AA" alkaline dry cells
  • Impact resistant protective rubber boot
  • Large LCD display with auto backlight
  • Audible/visual/vibration alarms
  • Compact and lightweight
  • 66W x 114H x 33D mm, 230 g




Model Name
Type A Type B
Measuring Gas
Oxygen in air
Detection Range
0.0 - 40.0%vol. (0.1%vol.)
Detection Principle
Galvanic cell
Alarm set point
Low alarm 19.5%vol.
High alarm 23.5%vol.
Over alarm 40.0%vol.
No Alarm
Trouble Alarm
Sensor disconnection, low battery, circuit failure, calibration range error
Alarm Types
  • Intermittent audible tone and flashing alarm light, activated when oxygen content falls below alarm level (preset at 18%)
  • Continuous audible tone for low battery alarm
  • Remote alarm buzzer receptacle
No Alarm
Trouble alarm: flashing light, intermittent buzzer and display of error message
Digital Display
Operating Temp. & Humidity
-20°C ~ 50°C (4°F ~ 122°F) Humidity below 95%RH (non condensing)
Alkaline dry cell (2-AA size)
Continuous operation
Maximum 5000 hours (at 25°C, and no alarm, no backlight)
Dimension & Weight
66(W) x 114(H) x 33(D) mm (2.6W x 4.5H x 1.3D in.)
230g, 8.1 oz (instrument only)
Standard Accessories
  • Hand strap
Optional Accessories
  • Extension cable 5m, 10m, 20m, 30m
  • Carrying case


An oxygen deficient environment is very dangerous! Even a brief exposure to an oxygen deficient environment can lead to unconsciousness or death. It is important to know the concentration of oxygen in your working area so that appropriate measures may be taken to ensure worker safety.


Specifications subject to change without notice.