What is Parts Per Million (ppm)? Parts per million (ppm) is a unit used to measure very low concentrations of a gas in the air. It represents one part of a gas for every one million parts of air. For example, a reading of 50 ppm carbon monoxide (CO) means that for every one million...

What is %Vol? %Vol (percent by volume) is a way of measuring the concentration of a gas by expressing it as a percentage of the total air or gas mixture. It is commonly used for gases present at higher concentrations, such as oxygen, carbon dioxide and methane where using a percentage is more practical than...

What are Honeywell BW Flex gas detectors? BW Flex 4 The Honeywell BW™ Flex is a versatile multi-gas detector designed to protect workers and first responders in demanding industries such as steel, wastewater, and paper production. It can monitor up to four gas hazards at the same time using a choice of more than 15...

Introduction Blackline Safety sell three portable gas detectors. These include the Blackline Safety G6 which is a single gas detector, capable of only detecting one specific gas. You then have the Blackline Safety G7 which is capable of detecting up to 5 gases (it has 4 sensor ports but can allow a dual sensor). Lastly...