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.

The AIC3Pro comes packed full with all these features:

Dual Polarity Display with Sum
Ranges, 2 million ions/cc, or 200 million ions/cc – Selectable
Data Recording, Date/Time Stamped – Stored on Removable MicroSD Card
Data Streaming, Record Uploading, and Plotting – via Included PC App
Automatic re-zero for long-term unattended operation – Selectable
Peak Level Capture
Averaging – Selectable
Rechargeable Li Battery
Tripod Mount, Wall Mount, and Dest Top Kick Stand
Deluxe Carrying Case

SPECIFICATIONS:
Ion Polarity	Positive, Negative, or Dual polarity with Sum – Selectable. In dual polarity mode, polarities are alternately updated every 7.5 sec.
Ion Scale Range	2 million or 200 million ions/cc – Selectable
Ion Resolution	10 ions/cc in 2 million scale, 1000 ions/cc in 200 million scale
Ion Accuracy	+/- 20%*, repeatability 5%
Averaging	None or 1 second to 15 seconds – Selectable
Peak Value	Selectable (in single polarity mode only)
Data Recording	Date and Time stamped files in a standard CSV format (supported by most data analysis software). Includes Ion Level, temperature, and humidity. In dual polarity mode, both polarities and sum are recorded. Data is recorded onto a removable MicroSD, 32GB max.
Streaming/Plotting	AlphaApp (free of charge Windows PC application) provides real-time data streaming, recorded data uploading, and plotting via a supplied 6’ USB cable.
Humidity Sensor	+/- 2% Relative Humidity
Meter Zeroing	Zero reference calibrated and self-test – Selectable Automatic re-zeroing for long term unattended operation None or 3, 6, 12, or 24hr – Selectable
Auto Shutdown	None or 5, 15, 30, or 60min. – Selectable
Display	128×128 pxl LCD, Backlight level is Selectable
Battery	2,000mAh rechargeable lithium-ion, UN38.3 certified 6-7 operating hours, Charging via USB C port with any USB power source
Charger (Included)	Input 110-240V, 50-60Hz, .35A, Output 5VDC, 1A
Environmental Limits	Temp -20°C to 43°C, Humidity 0-85% non-condensing Wind, <15km/hr (9mph)
Accessories (Included)	ESD shielding cap, Earthing ground cable with connectors. 3-in-1 kickstand, wall mount, and tripod mount. Deluxe protective carrying case.
Meter Size	6.6” x 3” x 1.5” (166.7mm x 76.2mm x 38.1mm)
Meter Weight	12.9 oz. (366 grams)
Carry Case	12″ x 10.6″ x 2.7″ (305mm x 269mm x 69mm), 1.1 lbs. (.5kg)
FCC Compliance	Part 15
CE Compliance	EMC: BS EN 55032:2015/Cor 1:2016, BS EN 61000-3-2:2019, BS EN 61000-3-3:2013+A1:2017, BS EN 55035:2017/A11:2020 RoHS: EN 50581:2012