Three easy to use personal monitors. All models measure a single gas. They are battery operated and lightweight.

 

XO-2200 - diffusion type personal gas monitor for Oxygen (O2)

XC-2200 - diffusion type personal gas monitor for Carbon Monoxide (CO)

XS-2200 - diffusion type personal gas monitor for Hydrogen Sulfide (H2S)

 

For safety check before working in underground construction site in the tank, manhole and tunnel etc.
For safety of site workers.