Jintan Taina TN800 Pollution Detector

Jintan Taina TN800 Pollution DetectorThis instrument is domestically produced (with imported sensors), but its accuracy is not inferior to imported ones, and even better than imported ones. Because we use multiple bottles of standard gas for calibration, we have: 1 ppm、10、50、100、300、500、1000、2000、4000、6000、8000、10000、12000、15000、19800ppm。