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

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

making it ideal for diesel

1262 - ASTM 97F 0-120F Range

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