Digital Dispaly Air Quality Monitor Gas Detector Analyzer Tester CO2/TVOC/HCHO
Concentration unit for HCHO and TVOC: mg / m & sup3;. CO2 technology: Infrared (NDIR). Detection ranges: CO2 (0 ~ 6000 ppm). 1 Detector. Power: 0.4W. Smart color display, the number is clear, easy to identify and read.