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The Pac 6500 O2 gas detector accurately measures the concentration of oxygen and warns of dangerous gas concentration.

  • Single-gas measuring device with powerful XXS sensor technology and fast sensor response times
  • Highly visible 360° alarm
  • Standard measuring range: 0 - 25 vol.-%
  • A1/A2 alarm thresholds:
    • Upper alarm thresholds: A1 23 vol.-%; A2 24 vol.-%
    • Lower alarm threshold: A1 19 vol.-%; A2 17 vol.-%
  • Robust, chemical-resistant housing for use under extreme conditions
  • The gas detector features a user-friendly display with bright backlighting
  • Secure attachment with tightly closing crocodile clip
  • Recording of concentrations and events with date and time

Conduct the prescribed function tests before each use with Dräger test and calibration stations and associated test gases. The basis for the function tests are the information sheets T021 / T023 (DGUV Information 213-056 or DGUV Information 213-057). Further information can be found here.

If you desire an individual alarm threshold configuration, please indicate the alarm thresholds at the end of the ordering process in the comment field.

Further information about the product can be found on our website. Please follow the link.


Technical Data - Dräger Sensor XXS O2

Detection limit 0.1 vol.-%
Resolution 0.1 vol.-%
Measuring range 0 to 25 vol.-% O2 (oxygen)
Response time ≤ 10 seconds (t90)
Precision sensitivity ≤ ± 1 % of the measurement
Long-term drift (at 20 °C)
  • Zero point: ≤ ± 0.5 vol.-%/year
  • Sensitivity: ≤ ± 1 % of the measurement/year
Warm-up time ≤ 15 minutes
Ambient conditions
  • Temperature: (-40 to 50) °C (-40 to 122) °F
  • Humidity: (10 to 90) % r. h.
  • Pressure: (700 to 1300) hPa
Temperature influence
  • Zero point: ≤ ± 0.2 vol.-%
  • Sensitivity: ≤ ± 2 % of the measurement
Humidity influence
  • Zero point: no influence
  • Sensitivity: ≤ ± 0.1 % of the measurement/% r. h.
Test gas approx. 12 to 20 vol.-% O2 in N2

Relevant Cross-Sensitivities - Dräger Sensor XXS O2

The values specified in the table are indicative and apply to new sensors. The specified values may vary by ±30%. The sensor may also be sensitive to other gases (data available on request from Dräger). Gas mixtures can be displayed as a sum. Gases with negative sensitivity can cancel a positive display of O2. It should be checked whether gas mixtures are present.

Gas/Vapor Concentration Display in ppm O2
Ammonia (NH3) 500 ppm no influence
Chlorine (Cl2) 10 ppm no influence
Ethylene (C2H4) 2 vol.-% ≤ 2(–)
Helium (He) 20 vol.-% ≤ 3*
Carbon dioxide (CO2) 10 vol.-% no influence
Carbon monoxide (CO) 0.5 vol.-% ≤ 0.4(–)
Hydrogen (H2) 1.6 vol.-% ≤ 2.5(–)

(-) negative sign of the deviation

Rental Advanced: Yes
Rental item or Consumable?: Rental items
Sensors: O2

Accessory Items

Calibration Gas CO2, 2.5%vol in Air
SRM09284

$326.49*