| H-racer 2.0 (IR) This car operates on 100% clean fuel produced by a Miniature Solar-Powered Hydrogen Refueling Station. | HY-ALERTA Model 500 Hand Held H2 Leak Detector With two sensing elements on the same semiconductor die, the HY-ALERTA™ 500 can detect hydrogen leaks as low as 15 ppm and will not saturate or be destroyed when detecting high concentrations of hydrogen up to 100%. | 400 Series Continuous Process H2 Analyzer For continuous analysis of up to 100% Hydrogen (H2) in process gas streams. Recommended for H2 cooled generators, electrolysis units, refinery gas, heat treating atmospheres, blast furnace gas, and more. |