Practical knowledge for better water-sensing decisions

Sampling point design before and after circulating water filtration

Aimed at commercial fish farming and aquaculture, this article focuses on the design of sampling points before and after circulating water filtration and provides a practical verification checklist based on the Water Detective 4 portable screening instrument. The article emphasizes the distinction between screening and laboratory identification, helps aquaculture technicians establish a reproducible sampling and measurement process, and provides decision methods for interpretation, retesting, and referral to the laboratory.

Article 第2篇 | Which water quality test pen is good? How to compare TDS pens, multi-parameter pens and AI test pens

What Testing Is Needed for Ammonia, Nitrite and Nitrate: Correcting Common Misconceptions

This article is aimed at household aquarium and fish-keeping users. It corrects common misconceptions about testing for ammonia, nitrite and nitrate, explains the role boundaries of general-purpose multi-parameter screening pens (such as the AtomBit Water Detective 4), and provides a reproducible workflow for sampling, measurement, interpretation, retesting and deciding when to refer to a laboratory.

Article第3篇｜How to test water quality at home? Complete steps for self-testing tap water at home

Daily screening after tap water reaches the household: a decision framework

For smart water appliance product managers and hardware engineers, centered on the nine screening indicators of Water Detective 4, this builds a daily screening decision framework for tap water after it reaches the household, clarifying the boundary between screening and identification, sampling steps, result interpretation, interference factors and conditions for referral to the laboratory.