Air Ion Counter Model AIC3Pro
Precis-Ion™ Air Ion Counter Model AIC3Pro is a lightweight, handheld Gerdien condenser meter that measures the number of positive or negative air ions. The meter can display both polarities and their sum. It also features a Li battery and data/time stamped data recording via a removable MicroSD card.
Air Ion Counter Model AIC3ST
Precis-Ion™ Air Ion Counter Model AIC3ST is a lightweight, handheld Gerdien condenser meter that measures the number of positive or negative air ions.
Shipping from February 2, 2026!!!