1.This Air Ion Tester is designed for test high level concentration of negative or positive air ion.
2.It is effective to test the electric charge on the surface of textile by strict. With it you can estimate whether the air ion generator or air purifier is working in good state.
3.The reading of the tester is correlative to the air ion concentration, but not exactly the number of it. In factor, this tester can only provide you a rough measurement to the air ion source. Please don’t take it as an precision instrument.
Display concentration of positive and negative air ion
Check Ion Generator
Test the textile or cloth, judge the ion’s polarity and concentration
Attention: don’t touch the rear square metal of the tester when testing
Power supply: 1.5V x 2 LR44 button size battery (Not including)
Dimensions:80mm(L) x 30mm(W) x 10mm(H) ;90g
Simple and small design, easy to carry
Please note that the colour may be a little different due to the effect of light