This hand-held ion counter possesses the same sensitivity (down to 10 ions/cm³) as meters costing far more. Fully electrostatically shielded, with a fan throughput of 200 cm³/sec, it can make accurate readings even in adverse conditions. Measures positive and negative ions separately. Use it to measure the ions generated from electrical storms, water spray, radioactive decay, corona discharge from high tension wires, even check the effectiveness of your ion generator! Made in USA with a 1 year warranty. 9-volt battery included.
Setting Time: 10 sec
Noise level: 10 ions/cm³
Accuracy: ±25% for fast ions
Ion selectivity (crosstalk): 20x
Range: 10 – 1,999,000 ions/cm³