Detector Tube, Measurement Range 10 to 600 ppm, Gas Detected Sulfur Dioxide, For Use With Mfr. No. 70830, Mfr. No. GV-100-SOHA-TR, Mfr. No. GV-110-S-TR, Mfr. No. GV-110-SOHA-TR, Color Change Blue Purple to White, Operating Pressure Ambient, Operating Temperature – Minimum 32 Degrees F, Tube Material Glass, Break-Off Tip Yes, Calibrated Yes, Product Type Gas Detection Tube, Sampling Method With Pump, Shelf Life 3 yr, Application Industrial Safety and Health