Review on π¬οΈ KT-401 Mini Air Ion Tester: Accurate LCD Display of High +/- Air Ion Concentrations by Anthony Cano
Detects both positive and negative ions
It came with a battery which I was able to use immediately. Thanks very much! Bought this to ensure my personal air purifier/negative ion generator is working so I don't have to worry about pathogens etc - to even have an air purifier. In light of the current coronavirus panic, this little device gives me peace of mind.
Pros
- Impressive
Cons
- I'll write later
