Nextteq NX204VH Phosphine Detector Tubes, 200-6000 ppm - 10/Pack

Detector tubes are primarily designed to measure the specific gases their tube names imply. But it is possible to measure other substances of similar chemical properties with the aid of a correction factor or correction chart; these are outlined in the operating instructions and in the Nextteq detector tube handbook for applicable tubes.

• High quality glass tube tip break easily and do not shatter for your safety
• 3 year shelf life
• 400 - 6000 ppm range per 1/2 pump stroke
• 200 - 3000 ppm range per 1 pump stroke
• Interferences include hydrogen cyanide, ammonia

Subject to a 30% restocking fee. Items must be returned unopened and in resellable condition.