Pyrometer Wavelength Selection Guide

Wavelength Selection
Most single-wavelength infrared pyrometers are virtually identical; however, a close look reveals that most pyrometers are different in one critically important way – the wavelength.

Wavelength is an important parameter when selecting an infrared pyrometer because some optical interferences are highly transparent only in specific wavebands. Infrared energy is an electromagnetic energy just like visible light and x-rays. Visible light does not pass through the human chest while x-rays go right through with wavelength being the only difference. In a similar way, correct wavelength selection allows an infrared pyrometer to view clearly through some types of intervening media, such as steam, flames, combustion gasses, etc., without introducing an error.


For more information about Williamson infrared pyrometers, contact Hile Controls of Alabama. Call them at 800-536-0269 or visit their website at

The Dräger Pac® Mobile Gas Detection Series: Pac 6000, 6500, 8000 and 8500

The Dräger Pac® series is composed of fast, accurate, reliable and easy-to-use personal single and dual gas detectors. The devices are extremely robust, featuring clear warning signals and language-free displays. Their cutting-edge sensor technology delivers reliable results every time.

The Dräger Pac series is available with a wide variety of sensors. The Pac 6000 and 6500 series can be equipped with sensors for standard natural gases like CO, H2S, SO2 or O2. The Pac 8000 series is the right choice for special gases like ozone, phosgene or nitrogen dioxide. If you need a dual sensor you can rely on the Pac 8500 series with a H2S / CO or O2 / CO sensor. In addition, the device can be equipped with a special hydrogen-compensated CO sensor for situations where carbon monoxide needs to be measured with hydrogen as a background gas.

For more information in Alabama, Mississippi, the Florida Panhandle, or Western Tennessee, contact Hile Controls of Alabama. Call 800.536.0269 or visit,, oräger.