Draeger Pac 3500 H2S Gas Detector w/ppm Readout 4543958

Available - Usually ships in 5 - 7 days
90% of 100

If you're working in the vicinity of dangerous hydrogen sulfide (H2S) gas, you need an h2s monitor you can depend on. The two-year Drager Pac 3500 H2S monitor continuously reads and displays H2S levels as low as .1 ppm and up to 100 ppm.

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The Pac Detector Communication Module allows data to be loaded onto a PC for analysis and reporting. In the presence of high H2S levels, workers are alerted by a vibrating alarm, 360 degree flashing LED lights, and a 90 dB audible signal. There are two alarms for added safety, at 10 ppm and 15 ppm. Best of all, alarm settings are fully adjustable to detect levels that comply with your specific company policies or regulations, using Draeger's communication cradle and software. Our customers working in sewage treatment plants, holds of ships, and oil refineries not only need an accurate H2S detector, but a solidly built one as well.

The Pac 3500 is great because of its incredibly robust housing that can withstand drops and bangs and has a coating that is impervious to most corrosive chemicals. Hydrogen sulfide isn't something to play around with. The Draeger Pac 3500 makes detection easy and affordable, with unmatched accuracy and resolution. It's also available in a highly-visible bright yellow, perfect in case it drops on the ground in darker work areas. Draeger sensors are considered to be the best, with technology that is used exclusively by some major oil companies, ships, and even hospitals. We carry their products because the number of lives saved over a variety of industries using this equipment is countless.

Key Features:

  • Lithium CR123A battery lasts two years if used eight hours daily

  • Resolution down to .1 ppm

  • Low alarm level of 10 ppm, high alarm level of 15 ppm

  • Simple and language-free for quick-glance checks

  • Easy-to-replace filter

  • Internal miniature Draeger XXS sensor technology

  • Easy operation

  • Back-lit display

  • Compact, durable, and lightweight

  • Affordable

Total Weight: 3.8 oz.

Part Number:


More Information
Price $212.92
SKU DRA01-4543958
Product Weight (lbs.) 0.2
Weight 0.5000
Brand Draeger
MPN 4543958
Type Single-Gas
Gas Type Hydrogen Sulfide (H2S)
5th Sensor No
Color No
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  1. jack emeott

    2014-04-11 22:16:54

    How big of an area will this monitor? I am using it in an office to detect gases coming in from a stink pipe through our ventilation system. Basically the air intake on the roof is near the plumbing vent pipes. Is this product what I need to do this?

    1 answer
    1. Justin

      2014-04-11 22:11:29

      This is a diffusion monitor, so it will only detect gas that comes in contact with it (as opposed to a pumped monitor that will pull air samples from a remote location). <br>
      Typically it is worn by a worker going into an area that may contain sewer gases like methane and hydrogen sulfide. However, if you're trying to see if these types of gases are coming into your office area through an air intake, you can place the monitor in front of the air vent, and it will monitor for dangerous gas levels. The gas concentration will be displayed on the screen and the monitor will go into alarm if any of the OSHA thresholds are passed.

  2. synethia

    2014-06-24 19:37:54

    Does this unit have to be bump tested and calibrated?

    1 answer
    1. Justin

      2014-06-24 19:37:54

      This unit doesn't have to be calibrated, but it should be bump tested before each use.

  3. Sarah

    2014-06-25 20:55:42

    What equipment is needed to bump test this detector?

    1 answer
    1. Justin

      2014-06-25 20:55:31

      You'll need a Draeger 0.5 LPM regulator 4557020, a cylinder of calibration gas, hose, and a calibration adapter that fits over the sensor of the unit.

  4. Lisa

    2014-08-19 20:23:19

    Does the unit show a reading accurate to 0.1 ppm? For example 4.5 ppm, etc. Or does it round to a whole number.

    1 answer
    1. Chris

      2014-08-19 20:23:19

      The Draeger PAC3500 does indeed have 0.1ppm resolution.

  5. Beccah

    2016-02-08 17:30:27

    How often do the sensors need to be calibrated?

    1 answer
    1. Ben

      2016-02-08 17:30:27

      This is a 2 year disposable monitor and doesn't require calibration. It should be bump tested periodically to ensure the sensors are functioning correctly.

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