Introduction to Tube Detection

Gas detection tubes are a very reliable and proven method for measuring toxic substances in air or water. Some of the major advantages of the tube detection method are no laboratory turnaround time, no power requirement, and no user calibration are needed. The ease and simplicity of use saves training time (training video available), sampling time, and provides a more accurate analysis. Our premiere line of tube detection products are manufactured by Sensidyne, Inc. We keep an ample inventory of the most commonly requested tubes, and even the tubes we don’t keep in stock are only a day away. Gas detection tubes measure in parts-per-billion, parts-per-million, percent (%) by volume, and are used in a variety of applications such as:

  • Hazardous waste sites
  • Clean-up of spills
  • Protecting workers from toxic vapors
  • Refineries
  • Leak detection for compliance
  • Pulp and paper plants
  • Hazardous materials response
  • Terrorist chemical attacks

How Does a Gas Detection Tube Pump System Work?

Each detector tube contains a reagent that is specifically sensitive to a particular vapor or gas. These reagents are on fine-grain silica gel, activated alumina or other absorbing media (depending on application requirements), inside a constant diameter, hermetically sealed glass tube. Most detector tubes are the "direct reading" type, with calibration markings right on the tube, so measurements can be made as simply and precisely as reading a thermometer. The actual operation is simple and accurate. Just snap off both "break away" ends of a tube in the convenient tube-tip breaker, insert the tube into the hand held pump, and pull out the pump handle. As the handle is pulled (just like a syringe), a precisely measured volume of ambient air is drawn inside the tube where it contacts the reagent. Instantly, the reagent changes color, reacting quantitatively to provide a length-of-stain indication. The farther the stain travels along the tube, the higher the concentration of gas. Note the scale mark on the tube where the stain stops and that´s the measurement.

Tube Pump Breakdown

Tube Pump Breakdown

Tube Pump Components

Tube Pump - Head Case, Cylinder, Piston, Rubber Gasket, Bottom Case, Handle

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RKI Eagle 2

Multiple Gas Monitor

RKI’s Eagle 2 is an advanced portable gas detector capable of monitoring up to six sensors simultaneously including a PID. 16 different sensors are available providing for hundreds of configuration possibilities.

Landtec GEM5000

Landfill Gas Analyzer

The GEM5000 is the latest in the line of Landtec's GEM landfill gas analyzers. Now lighter, smaller, more accurate, and with an improved user interface, the only instrument you need to take into the field just got even better.

Levelogger Edge

Water Level Datalogger

Advanced and durable, the Levelogger Edge is the latest water level datalogger from Solinst. An all new sensor design manages to achieve excellent accuracy while being more robust then previous models and remaining economical.

MultiRAE Series

Multiple Threat Monitor

The MultiRAE Series of handheld gas detectors includes three models for detection of up to six threats simultaneously. Choose from 25 toxic sensors, 3 PID sensors with a 9.8 eV lamp option, and even a gamma radiation sensor.

Wing Tank Entry Kit

MultiRAE for USAF/NAVY

Gas detector designed for USAF/NAVY wing tank entry applications

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