KT-401 Mini Air Ion Tester Counter with LCD Display High Concentration of +/- Air Ion
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<b>[Product Information]</b><br>
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<li>This air ion tester is designed for test high level concentration of negative or positive air ion</li>
<li>It is effective to test the electric charge on the surface of textile by strict</li>
<li>with it you can estimate whether the air ion generator or air purifier is working in good state</li>
<li>The reading of the tester is correlative to the air ion concentration, but not exactly the number of it</li>
<li>In factor, this tester can only provide you a rough measurement to the air ion source</li>
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