●Test range is between 0.1 × 10⁴ to 199.9 ×10⁴ ions/cm3
●Resolution:0.1 × 10⁴ ions/cm3
● Tiny shape
● Display concentration of positive and negative air ion
● Check Ion Generator
● LCD Display: Max reading of 1999.
● 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
● Supplied by LR44 button size battery
● Dimensions:78mm(L) x 27mm(W) x 9mm(H)