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As conductivity is temperature-dependent and conductivity can be used to determine salinity, oceanographers measure conductivity, temperature, and depth (CTD) when studying seawater.  Oceanography is the study of the ocean, and oceanographers have a very important job in climate research. Because the ocean stores so much heat, the ocean has a large effect on our world’s […]

How often you replace your pH probe depends on how much you use it, the temperature and type of sample you are measuring, and the care and maintenance of the probe. Most people get a good 12-18 months out of a pH probe before needing to replace it.  Measuring pH is important. A pH probe

Measuring conductivity is essential in many industries and applications such as assessing water quality in aquatic ecosystems, salt concentrations in drinking water, or checking corrosion in heat exchangers.  Electrical Conductivity or (EC) measures the ability of a material to transmit an electrical current over a certain distance, usually measured in Siemens (S) per distance.  When

Four common techniques can be used to remove dissolved oxygen (DO) from water, both chemically and mechanically. These techniques include boiling water at 1 atm (atmospheric pressure), boiling water under reduced pressure, nitrogen (N) purging, and sonication under reduced pressure.  Dissolved oxygen (DO) is the amount of oxygen present in water. We can easily measure

CO2 scrubbers are used in both freshwater and saltwater aquariums that contain a protein skimmer to help control pH levels. So, if you have issues with elevated pH levels in your saltwater (or freshwater) aquarium, using a CO2 scrubber will help you maintain healthy levels. Are you struggling to maintain a pH range in your

A CO2 scrubber is essential for removing CO2 from the air. Air polluted with CO2 is pumped into the scrubber, which reaches an ion exchange resin that isolates the CO2 molecule from other gases. The polluted air is then cleaned and pumped out of the CO2 scrubber, which then must either be discarded or reused.

NDIR CO2 sensors detect and monitor CO2 in the air based on the absorption of infrared (IR) light at a given wavelength. An IR lamp directs light waves through a tube towards a filter. The amount of IR light that passes the filter is measured by an IR light detector.  Carbon dioxide (CO2) is an

Where to permanently mount your non-dispersive infrared (NDIR) sensor depends on why and where you are monitoring CO2 levels indoors, however, for best results they are usually placed 4-6 feet from the floor, also known as the “breathing zone”. Carbon dioxide (CO2) is an inert gas, formed from respiration, combustion, and organic decomposition. As it

Humidity probes detect changes that alter the temperature or electrical currents in the air. There are three main types of sensors: capacitive, resistive, and thermal conductivity depending on what industry or application you will be measuring.  Humidity is how much water air contains. The presence of water in the air can affect human health and

Conductivity is a vital parameter when determining water quality. As salinity and temperature increase, conductivity also increases, which can have a negative effect on the quality of water. This is because the higher the conductivity, the higher amount of impurities (dissolved substances, chemicals, and minerals) are in the water. Conductivity is one of the most