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Single Gas Detector


The 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.

  • Features
  • Applications
  • Approvals
  • Specification
  • Accessories
  • Intrinsically safe ExiallCT3
  • 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 LCO display with auto backlight
  • Audible/visual/vibration alarms
  • Compact and light weight
  • 66W x 114H x 330 mm, 230g only
  • Measurement of Oxygen deficiency in Tank
  • Oxygen trace monitoring in the inert gas
  • Mining
  • Tunnels
  • Refineries / Petrochemical
  • Water / Wastewater Treatment
  • Pharmaceuticals
  • Utilities
  • Chemical Plants
  • Fire Services
  • Intrinsically safe (ExiaIlCT3)
Type Type A Type B
Gas Detected Oxygen in air
Detection Principle Galvanic cell
Detection Range
(0.1 %vol.)
Alarm Set Point Low alarm 19.5%vol.
High alarm 23.5%vol.
Over 40.0%vol.
No alarm
Trouble Alarm Sensor disconnection, low battery, circuit failure, calibration range error
Alarm Types Gas alarm: flashing light, intermittent
buzzer and flashing gas
value, pulsing vibration
No alarm
Trouble alarm : flashing light, intermittent buzzer and Display of error message
Display Digital display
Power Source Alkaline dry cells (2-AA size), 2pcs
Continuous Operation Maximum 5000 hours (at 25°C, and no alarm, no backlight)
Safety Design Intrinsically safe (ExiaIlCT3)
Operating Temp. & Humidity -20°C ∼+50°C : Humidity below 95%RH (non-condensing)
Special Functions Manual backlight for LCD (automatically lit during alarm)
Peak hold (maximum and minimum)
Dimensions & Weight Approx.66(W)x114(H)x33(D)mm Approx. 230g (Instrument only)
Standard Accessories Hand strap
Optional Accessories Extension cable 5m, 10m, 20m, 30m, Carrying case
Standard Accessories
  • OX-07 Type A With extension cable
  • Hand Strap
Optional Accessories
  • Extension Cable
  • Carrying Case
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