Qualitative Product : With it you can estimate whether the air ion generator or air purifier is working in good state. This instrument is a qualitative product, not a quantitative product
Measuring Range : 10000 --- 19,990,000(ions/cc)
About Battery : The air ion tester has 4 external button batteries, which the supplier did not take when delivering the product, but there are 2 built-in button batteries in the product
Easy to Carry : Simple and small design, the air ion counter is easy to carry, very easy to hang as a necklace
Function : This instrument can be used to determine whether the negative ion polarity produced by air negative ion generator or air purifier is correct, and the concentration of ion concentration is estimated
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