GASCO 421: 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen 58 Liter Cylinder Flashlights Braided headbands two-strap design with

Braided headbands two-strap design with dual point attachment helps provide a secure seal

weather resistant case and buttons are well suited for use in industrial applications

Petro Marine's staff of trained technicians can test

making it ideal for diesel

The black background makes it easier to see light colored oils/liquids

GASCO 421: 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen 58 Liter Cylinder Flashlights Braided headbands two-strap design withProduct Description 100 PPM Carbon Monoxide 2. 5% CH4 (50% LEL) Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen Contained in an Aluminum Cylinder Cylinder connection C 10 5 8" 18 UNF Calibration Certificate NIST Made in the USA Select Cylinder Size