Detector Tube Measurement Range 0.05 to 8 Percent Gas Detected Sulfur Dioxide For Use With Mfr No GV-100-SOHA-TR Mfr No GV-110-S-TR Mfr No GV-110-SOHA-TR Color Change Orange to Green 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 Sampling Time 45 sec (0.5 to 4 Percent vol)