Gas and air instruments detect, monitor or analyze gases present in an environment

Water quality testing instruments are used to test water for chemical and biological agents, and to measure variables such as clarity and rate of movement

Dissolved oxygen meters are analytical instruments that are used to measure the amount of oxygen dissolved in a liquid sample

Dissolved CO₂ instruments are analytical devices that measure the amount of carbon dioxide (CO₂) dissolved in a liquid sample such as water. They typically include a submerged probe that is covered by a thin organic membrane

Dissolved oxygen sensors are used to measure the amount of oxygen dissolved in a unit volume of water. In water quality applications, such as aquaculture (including fish farming) and wastewater treatment, the amount of dissolved oxygen (DO) must be kept high.

Combustion analyzers and flue gas analyzers measure the gas content of emissions in order to monitor the combustion efficiency of fuel-burning equipment.

Gas sensors interact with a gas to initiate the measurement of its concentration. The sensor then provides output to an instrument to display the measurements

Gas generators provide an onsite supply of gas, vapor or humidity (water vapor) eliminating the need for delivery in gas cylinders.

Pharmaceutical and medical gases are specialized for medical, drug processing or biotechnology applications.

Laboratory and calibration gases are specialized for use as laboratory standards, as well as for detection, sample preparation, environmental monitoring and analysis applications.

Aerators are devices that bring air into contact with water, often by spraying water through air or bubbling air through water.

Chemical process and petrochemical gases include pure gases, gas mixtures or gas standards for reactions, water treatment, sterilization, instrumentation calibration, heating and processing in the chemical, petrochemical and pulp & paper industries.

Reactors are used to grow cells and contain reactions.

Test equipment and instrument repair services test and repair industrial equipment and instruments. They specialize in the test and repair of acoustic and vibration equipment, electrical and electronic test equipment, laboratory equipment and instruments, inspection instruments or non-destructive testing (NDT) equipment, or specialty testing equipment and instruments

Instrument calibration services test equipment and calibrate them to various standards.