Pac 8500 Gas Detector from Draeger

The Draeger Pac 8500 single gas detector is a reliable and precise instrument even under the toughest conditions. The detector can be equipped with a hydrogen compensated CO sensor or a Draeger dual sensor. The dual sensors provide the option of measuring two gases at once: either Hydrogen Sulfide and Carbon Monoxide or Carbon Monoxide and Oxygen.

You can count on the Pac 8500 to give you reliable, precise readings at any time even in extreme conditions. The powerful sensors with a low T-90 response time ensure quick reactions. In addition to the standard alarms, you can define extra alarm thresholds for TLV and STEL. The Pac 8500 also provides a data and event logger for logging concentrations and event along with the date and time. The data can be loaded on a PC ia an interface and processed further there.

The Draeger Pac 8500 series offers the following sensor combinations: hydrogen sulfide with carbon monoxide or oxygen with carbon monoxide. Measuring two gases at the same time reduces downtime as well. You can take vol% measurements of oxygen and ppm measurements of carbon monoxide simultaneously using just one gas detector. In industries where CO needs to be measured with hydrogen as a background gas, the measured value for carbon monoxide may be falsified by cross sensitivity. Thanks to the special hydrogen compensated CO sensor, this cross sensitivity to hydrogen is significantly reduced in the display of CO. This new features can eliminate the need to carry two different detectors.

The Pac 8500 can easily handle even extreme conditions. The sensors can tolerate air pressures between 700 and 1,300 mBar. A membrane filter protects the sensor from foreign matter such as dust and liquids. The shock proof, chemical resistant housing meets the requirements specified by the IP68 standard rating.

The D-Light indicates whether the functionality of the service has been tested and that it is ready to use. The housing is also designed with your safety in mind. Each Draeger Pac 8500 features clear, easily visible color coding, thereby minimizing the chance of mistakes.

The large display indicates the respective gas concentration. Unit of concentration and battery capacity, is also displayed. The bright backlighting ensures that all values can be clearly read in the dark.

If the Draeger Pac 8500 measures hazardous gas concentrations, it sets off an audible, visual and noticeable vibrating alarm. Two bright, flashing LEDs on the top and bottom of the device ensure that the alarm is easily visible from all sides. The acoustic signal reaches a volume of 90 dB. The display can show the peak concentration measured at any given moment. Earlier alarms registered can also be retrieved at a later time. The Pac 8500 logs concentrations and events along with date and time. The Pac 8500 with oxygen sensor has two additional alarm thresholds in addition to the standard alarm threshold settings. This provides an additional level of safety as a pre-alarm, in addition to the main alarm, can be set for both oxygen enriched and oxygen deficient atmospheres.

The Pac 8500 logs concentrations and events along with date and time. The data can be downloaded to a PC via an interface and processed further there. The Pac 8500 is protected against, water, dust and other foreign bodies by a special membrane filter. When the filter becomes heavily soiled in use, you can quickly and easily replace it yourself.

Sensor Specifications

Alarm A1
Alarm A2
Hydrogen Sulfide/Carbon Monoxide
0-100 ppm H2S
0-2,000 CO
10 ppm H2S
35 ppm CO
15 ppm H2S
50 ppm CO
Oxygen/Carbon Monoxide
0-25 Vol % O2
0-2,000 ppm CO
19.5 Vol % O2
35 ppm CO
23.5 Vol % O2
50 ppm CO
Carbon Monoxide (H2 Compensated)
0-2,000 ppm
35 ppm
50 ppm


Battery Service Life Minimum 2 years, dual 12 months
Degree of Protection IP68
Temperature Range -22 to 131°F
Humidity 10 to 90% rH
Approvals CSA, IECEx, ATEX, CE
Size 2.5″ x 3.3″ x 1.0″
Weight 3.7 ounces

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email

Catalog No.
Pac 8500 Gas Detector for Hydrogen Sulfide/Carbon Monoxide
Pac 8500 Gas Detector for Carbon Monoxide/Oxygen
Pac 8500 Gas Detector for Carbon Monoxide, Hydrogen Compensated

Accessory Ordering Information

Catalog No.
Bump Test Calibration Adapter
Bump Test/Calibration Station
Communication Cradle & USB Cable 8318587


Pac 8500 Single Gas Detector Literature

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