Water quality testing pens and water quality Detectors are two common water quality testing tools, and they have some differences in working principle, function and use:
A water quality Tester is a portable water quality testing tool commonly used to quickly measure key parameters in a water body. A water quality Tester is a device specially used to measure and analyze various physical, chemical and biological indicators in a water body.


How it works
Water quality testing 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 measure multiple parameters simultaneously 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 simple to operate, and are mainly used to quickly measure one or two water quality parameters, such as pH, residual chlorine, etc. Water quality Detectors have more functions and measurement parameters, and can measure a wider range of water quality indicators, such as pH, turbidity, dissolved oxygen, conductivity, ammonia nitrogen, etc.
Precision and Accuracy
Water quality Detectors generally have higher precision and accuracy, and their sensors and instruments are more professionally designed and calibrated and standardized. Water quality test pens have lower precision and are suitable for general rapid water quality detection, but may not be suitable for high-precision scientific research or professional fields.
How to use and operate
Water quality test pens are usually designed as handheld devices and are simple to operate, requiring only dipping the tip into a water sample to measure. Water quality Detectors may require more setup and operation steps, and may require more sample handling and instrument operation skills.
In conclusion, water quality testing pens are suitable for simple and fast water quality testing needs, while water quality testing instruments are suitable for more complex and comprehensive water quality analysis and monitoring work. Which tool to choose should be determined according to actual needs and budget.
