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TDS meters can operate reliably for many years, but the electrodes are the most subject to wear and tear. Each time a measurement is taken, the sensor surface comes into direct contact with water, dissolved minerals, and various other chemical components. This continuous process means the electrode's responsiveness gradually decreases over time.

What TDS level is considered safe to drink? Does a low TDS reading mean cleaner water? Learn how to read TDS results, common misconceptions, and how to assess water quality more accurately

An optical power meter is used to measure the power level of optical signals at a specific point along a fiber optic transmission line. When combined with an optical light source, the optical power meter can also be used to evaluate fiber link loss, verify installation quality, and support troubleshooting activities. With fast measurement capability, ease of use, and reasonable investment costs, optical power meters are widely applied in various fields related to optical transmission systems

Metal detectors operate on the principle of passive electromagnetic induction and can only detect isolated metal objects such as gold, copper, and iron. These devices cannot trace utility paths because they cannot differentiate the direction or depth of long, buried continuous pipes. For insulated electrical cables or plastic pipes, metal detectors are completely ineffective as there is no AC current to generate a magnetic field. Furthermore, the detection depth of standard consumer metal detectors is typically limited to 1 - 2 meters for small objects, whereas underground utility lines are often buried 3 - 5 meters deep or even more.

When reviewing the specifications of a laboratory circulating bath, two performance parameters frequently appear: Stability and Uniformity. Although both are related to temperature control, they describe two fundamentally different characteristics of the equipment.

Air bubbles that form during stirring not only affect mixing efficiency but can also skew analytical results in some laboratory applications. Learn about the causes and effective ways to minimize them

Circulating baths are widely used in chemical, biological, pharmaceutical, material research, and calibration laboratories. Their function extends beyond heating; they are designed to maintain a stable temperature throughout the entire working area. When temperature uniformity deteriorates, samples placed in different locations within the bath may be exposed to different thermal conditions, affecting the reliability of test results.

If the magnetic stir bar rotates weakly, easily swings away, or no longer creates the same swirling motion as before, has it lost its magnetism? Find out the causes, how to check, and the appropriate solutions.

The performance of a high-temperature circulating bath depends on more than just heating power and controller accuracy. The heat transfer fluid plays a critical role in determining heat transfer efficiency, temperature stability, and the overall reliability of the system.

Two metal detectors may have fairly similar specifications, but their field results can differ significantly. Some devices operate stably on park ground, while others exhibit significant interference when moved to red basalt soil or coastal areas