These are replacement detector tubes from Gastec International and they are designed to work with their GV-110 and GV-100 sampling pumps (sold separately).
Click here to learn more from Gastec International (goes to the factory website)
Click here for technical data from Gastec International (goes to the factory website)
Features
On-site measurements can be performed easily by anybody, anytime and anywhere, in a short time
Easy-to-check direct reading possible due to the calibrated scale directly printed on the tube
An extensive measuring range can be obtained by adjusting the sampling volume
In order to assure high precision, each production lot is tested and calibrated independently, Each detector tube has its own quality control number printed on the tube
Long shelf-life with excellent long-term stability