• Six exposure levels covering 4 to 300 ppm/hr
• Minimum detectable concentration in 8 hours: 0.5 ppm
• Relative Humidity Range: 15 to 90%

Gas Monitoring Badges are lightweight colorimetric — ideal for both personal and area monitoring. Designed to accurately provide immediate results while minimizing the effects of humidity and air velocity. Each ChromAir badge shows exposure levels. The scale printed on the badges is based on exposure dose. Badges attach easily to shirt or lab coat collars — order badge clips separately Color Comparators increase the range and resolution of your ChromAir badge (order separately). The color scales on the comparator identically match the colors formed on the badges.