Technical Specifications
| Air Flow Rate | 2.3 M/s |
| Measurement Accuracy | Better Than ± 20% |
| Resolution | 10 Ions |
| Measurement Range | 10 Million / Cm³ To 2 Million / Cm³ (KEC 900+II) 100 Million / Cm³ To 20 Million / Cm³ (KEC990+II) 1,000 Million / Cm³ To 200 Million/Cm³ (KEC990MII) |
| Supply | DC 12 V And Built-In Rechargeable Lithium Battery |
| Type Of Ions | Positive Ions And Negative Ions In The Air |
| LCD Backlight | Yes |
| Average Valve Measurement | Average Value Measurement Function (10 Seconds, Can Be Customized According To User’s Demands) |
| Display | LCD Digit Display |
| Operation Environment | 41 °F To 113 °F (5 °C To 45 °C), 95% RH |
| Accessories | DC 12 V Adapter, Ground Wire, Electrostatic Shielding Plate, Portable Aluminium Box And Clean Stick |
| Optional | External Accumulator Battery, Charger, Tripod |
| Dimension | 4.13 In × 6.49 In × 2.75 In (105 Mm x 165 Mm x 70 Mm) |
| Weight | 1.71 Lb (780 g) |
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