GASCO 421: 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen 58 Liter Cylinder Flashlights Two patch breast pockets

Two patch breast pockets

Simple operation

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

customizable monochrome or optional color display which provides crystal clear visibility indoors or out

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

GASCO 421: 100 PPM Carbon Monoxide 50% LEL Methane 25 PPM Hydrogen Sulfide 18% Oxygen in Nitrogen 58 Liter Cylinder Flashlights Two patch breast pocketsProduct 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