Draeger Pac 3500 O2 Gas Monitor 4543959

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The two-year disposable Draeger Pac 3500 O2 gas monitor alerts workers when they've reached harmfully high or low levels of oxygen, as well as provides continuous readings of present gas levels. Its ability to provide a constant readout has made this one of the more popular single gas O2 monitors on the market. While many competitive models simply alert a wearer if they've come into contact with a dangerous level, this monitor gives you much more analytical information for added safety.

Another great aspect of the Pac 3500 is its durability. It features an impact-resistant housing with rubber coating that makes it impervious to corrosive chemicals. It also features an incredibly durable adjustable D-ring clip to attach to a user's clothes.

Related Product:
The Pac Detector Communication Module allows data to be loaded onto a PC for analysis and reporting.

Other features on the Pac 3500 include two-button functionality, language-free readings, and a back-lit display for darker conditions.

For over a hundred years Drager equipment has saved lives and today its sensor technology is some of the best in the world. Industrial workers have come to rely heavily on the longevity, accuracy, and the quality of craftsmanship that goes into all of their detector equipment.

Key Features:
  • Measuring range of 0-25 Vol.%, resolution of .1 Vol.%
  • Constant gas level readout
  • Two alarms for high (23.5%) and low (19.5%) levels of O2
  • Robust housing and D-ring clip
  • Miniature version of Drager's famous XXS sensor
  • Can be used two years without calibration
  • Two year lifespan
  • Meets requirements of IP 65 for water resistance
Total Weight:
3.8 oz.

Part Number:
Drager 4543959
More Information
Price $212.92
SKU DRA01-4543959
Product Weight (lbs.) 0.2
Weight 0.5000
Brand Draeger
MPN 4543959
Type Single-Gas
Gas Type Oxygen (O2)
5th Sensor No
Color No
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  1. Yawoo

    2014-12-24 19:05:31

    Is the battery replaceable for this particular oxygen monitor?

    Also what kind of battery is it?

    1 answer
    1. Chris

      2014-12-24 19:05:31

      The Drager PAC3500 series of gas detectors have replaceable batteries. The recommended replacement is a Panasonic CR123A lithium 3 volt battery. This type of battery is available from other manufacturers as well, with similar part numbers that all seem to include the ‘123’ in their nomenclature.

  2. T

    2015-03-18 23:03:03

    can the unit be turned off when not in use?
    can the alarm be turned off?

    1 answer
    1. Chris

      2015-03-18 23:03:03

      The Draeger PAC 3500 detectors may be turned off when not in use. This will extend the battery life of the unit. However, the 2 year countdown still applies. The alarms do not have a ‘silence’ mode available. You could turn the detector off, and that will silence the alarm. But as long as the unit is turned on, and dangerous levels of gas are detected, the alarm will sound.

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