Detector Tube, Measurement Range 0.025 to 0.5 ppm/0.05 to 1 ppm/0.15 to 3 ppm, Gas Detected Ozone, For Use With Mfr. No. NX-1000-100, Mfr. No. NX-1000-130, Mfr. No. NX-1000-150, Mfr. No. NX-1000-200, Mfr. No. NX-1000-230, Mfr. No. NX-1000-250, Tube Material Glass, Break-Off Tip Yes, Calibrated Yes, Product Type Gas Detection Tube, Sampling Method With Pump, Shelf Life 2 yr, Application Air Pollution Analysis, Industrial Hygiene, Chemical Formula O3, CAS Number 10028-15-6, Package Quantity 10