Gas detector tube Hydrogen phosphide in acetylene 1 box (10 pieces) 121SA 1 box (10 pieces)

Since it is a direct reading type, there is little individual variation. We offer various types of detector tubes for different gases and applications. Detector tube name: 121SA Hydrogen phosphide in acetylene Number of measurements per box: 10 Measurement gas name: Phosphine Measurement range: 20 to 800 ppm Measurement gas name: Hydrogen phosphide Measurement range: 20 to 800 ppm