Negative ions meter DM7800-3

digital

The Detector is used to test all kinds of large, medium and small ions of negative polarity in the air, temperature and humidity, with high precision, accurate measurement, high sensitivity, strong environmental adaptability, and long continuous working time. The negative ion test adopts the capacitive inhalation method to detect negative ions in the air. The shell is made of high-grade aluminum alloy, which is durable and beautiful. * Support 3.5-inch TFT large-screen HD display * Support negative ion test * Negative ion test range: 0 to 90,000,000 PCS/CM3 * Test content: ION/PM2.5/PM1.0/PM10/HCHO (Formaldehyde)/Temperature/Humidity * PM2.5 test range: ( 0-999 ug/M³ ) * HCHO test range: (0.001-1.999Mg/M³) * Built-in large-capacity lithium battery * Support time and date display