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

Positive displacement flow meters measure the volume or flow rate of a moving fluid or gas by dividing the media into fixed, metered volumes. These devices consist of a chamber that obstructs the media flow and a rotating or reciprocating mechanism that allows the passage of fixed-volume amounts. Search by Specification | Learn More about Positive Displacement Flow Meters

Ion specific electrode meters are millivolt meters that interface with ion selective electrodes (ISEs). These meters take the potential generated by the electrode and convert it into units of concentration. Search by Specification | Learn More about Ion Specific Electrode Meters

...or oxygen) and ignited. In gas-detection systems, the amount of gas present is specified in terms of % LEL: 0% LEL being a combustible gas-free atmosphere and 100% LEL being an atmosphere in which the gas is at its lower flammable limit... Search by Specification | Learn More about Gas Instruments

...nitrogen dioxide, nitrogen oxides, nitric oxide, organic solvents, oxygen, ozone, phosphine, silane, sulfur dioxide, and water vapor. Important measurement specifications to consider when looking for gas detectors and gas sensors include the response... Search by Specification | Learn More about Gas Detectors and Gas Sensors

Metering pumps are precision pumps, which dispense an exact amount of material. They are used in a variety of chemical dosing and metering applications. Search by Specification | Learn More about Metering Pumps

...and colorimeters can be analog meters, a numeric or alphanumeric digital display or video, CRT or LCD. Another option is to have no local display at all and have the data gathered by another instrument. Likewise, the user controls can also be analog or digital... Search by Specification | Learn More about Water Quality Photometers and Colorimeters

Liquid flow meters are used for measuring the flow or quantity of a moving fluid. Search by Specification | Learn More about Liquid Flow Meters

...such as temperature, pressure, level and speed. There are three generic inputs for flow computers, totalizers, and indicators: pulse (frequency), analog current, and analog voltage. Flow sensor inputs are received from differential pressure meters, true mass... Search by Specification | Learn More about Flow Computers, Totalizers and Indicators

pH electrodes are analytical sensors for measuring potential of hydrogen (pH), the negative logarithm of the hydrogen ion activity in solution. Search by Specification | Learn More about pH Electrodes

Ultrasonic flow meters use sound waves to determine flow rates. They can be either Doppler Effect meters or Time-of-Flight meters. Search by Specification | Learn More about Ultrasonic Flow Meters

Opacity sensors and instruments measure the amount of light transmitted through a sample. Search by Specification | Learn More about Opacity Sensors and Instruments

Meter provers and flow proving components provide a known traceable volume to simulate actual operating conditions to test and verify the performance of flow meters and transfer meters. Learn More about Meter Provers and Flow Proving Components

Paddlewheel flow meters have a paddle wheel that is perpendicular to the flow path. The rotor axis is positioned to limit contact between the paddles and the flowing media. Search by Specification | Learn More about Paddlewheel Flow Meters