Le stylo de test de la qualité de l'eau et l'instrument de test de la qualité de l'eau sont deux outils courants de test de la qualité de l'eau., they have some differences in working principle, function and use mode:

The water quality test pen is a portable water quality test tool, which is usually used to quickly measure key parameters in water bodies. Water quality detector is a kind of equipment specially used to measure and analyze various physical, chemical and biological indicators in water.

Quatre différences majeures entre le stylo de test de la qualité de l'eau et l'instrument de test de la qualité de l'eau

Comment ça fonctionne
Water quality detection pens usually use technologies such as electrochemical sensors or optical sensors to judge water quality by measuring the potential or light intensity of specific parameters. Water quality detectors use more complex sensors and instruments that can simultaneously measure multiple parameters and use different analytical methods, such as electrochemical methods, spectroscopy, etc..

Functions and parameters
Water quality test pens are usually designed to be portable and easy to operate, and are mainly used to quickly measure one or two water quality parameters, such as pH, residual chlorine, etc.. Water quality detector has more functions and measurement parameters, can measure a wider range of water quality indicators, such as pH value, turbidité, dissolved oxygen, conductivity, ammonia nitrogen and so on.

Quatre différences majeures entre le stylo de test de la qualité de l'eau et l'instrument de test de la qualité de l'eau

Precision and accuracy
Water quality detectors usually have higher precision and accuracy, and their sensors and instruments are more professionally designed, calibrated and standardized. Water quality testing pens have low accuracy and are suitable for general rapid water quality testing, but may not be suitable for high-precision scientific research or professional fields.

Mode of use and operation
Water quality test pens are usually designed as hand-held devices that are simple to operate and only require the tip of the pen to be immersed in the water sample for measurement. The water quality tester may require more setup and operation steps and may require more sample handling and instrument operation skills.

En bref, the water quality testing pen is suitable for simple and fast water quality testing needs, while the water quality detector is suitable for more complex and comprehensive water quality analysis and monitoring work. The specific choice of which instrument should be determined according to the actual needs and budget.