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. Search by Specification | Learn More about Dissolved Oxygen Sensors

...there are seven basic types of measurements that can be made. Percent LEL or lower explosive limit or lower flammable limit (LFL) of a combustible gas is defined as the smallest amount of the gas that will support a self-propagating flame when mixed with air... Search by Specification | Learn More about Gas Instruments

Gas detectors and gas sensors interact with a gas to initiate the measurement of its concentration. The detector or sensor then provides output to an instrument to display the measurements. Search by Specification | Learn More about Gas Detectors and Gas Sensors

...activity of the carbon dioxide equals that of the liquid. Air contains only 0.035 % carbon dioxide by volume; however, CO2 is nearly 30 times as soluble in water as oxygen. Carbon dioxide moves across the air-water interface according to the same... Search by Specification | Learn More about Dissolved CO2 Instruments

Flow computers, totalizers, and rate indicators integrate the functions of flow and temperature measurement, computation, data acquisition, input / output (I/O) standardization, and closed loop control. They require external sensor inputs Search by Specification | Learn More about Flow Computers, Totalizers and Indicators

...parameters to specify when selecting thermistors. The thermal time constant is the time required for a 63.2% change in thermistor body over a specific temperature span when measurements are made under zero-power in a thermally-stable environment... Search by Specification | Learn More about Thermistors

Level sensors are used to detect liquid or powder levels, or interfaces between liquids. There are two basic level-measurement types: continuous and point or multi-point. Search by Specification | Learn More about Level Sensors

Humidity measurement instruments test for absolute humidity, relative humidity, or dew point in air. Search by Specification | Learn More about Humidity Measurement Instruments

...and pressure. Industrial gases are used for a variety of applications, depending on the type of gas used. For example, uses of oxygen include welding and cutting, oxidation processes for making chemicals and pharmaceuticals, and treatment... Search by Specification | Learn More about Industrial Gases

...and sensors; RTD elements and transmitters; and thermistors, thermocouples, thermopiles, and thermal switches. There are two basic methods for temperature measurement, contact and noncontact. Within these two groupings, an engineer is likely to come... Search by Specification | Learn More about Temperature Instruments

...of the hydrogen ion activity in solution. The pH value of a substance is directly related to the ratio of the hydrogen ion [H+] and the hydroxyl ion [OH-] concentrations. This is one of the most common laboratory measurements because so many chemical... Search by Specification | Learn More about pH Electrodes

...of the conducting medium. Devices use either anodic stripping voltammetry or cathodic stripping voltammetry. Water quality testing instruments that measure conductivity, dissolved solids, suspended solids, turbidity, dissolved oxygen, dissolved carbon... Search by Specification | Learn More about Water Quality Testing Instruments

Respirometers are used for the quantification of respiration in humans or other organisms through measurements of oxygen, water and/or carbon dioxide levels and mass flow rate. Learn More about Respirometers

Non-destructive testing (NDT) supplies and accessories are used to detect, inspect, and measure flaws, bond integrity, and other material conditions without permanently altering or destroying the examined part or product. Search by Specification | Learn More about Nondestructive Testing (NDT) Equipment