MSA, Phosphine, 0 to 5 ppm, Single Gas Detector - 5EMP5|10076735 - Grainger
MSA Combustible Gases, Oxygen, Carbon Monoxide, Hydrogen Sulfide And Sulfur Dioxide ALTAIR(R) 5X Gas Monitor With Rechargeable Battery, Monochrome Display, Pump, Sampling Line And Probe: Amazon.com: Tools & Home Improvement
MSA Altair 5 5-Gas (LEL, O2, CO, H2S, Methane) Mono Detector Kit with Pump Includes ANZ Pack & Power Supply with Cradle, 10 Foot Sampling Line & 1 Foot Probe - ANZ Version - 10094992
MSA 10116926 Altair 5X Gas Detector Industrial Kit - LEL, O2, CO, H2S for sale online | eBay