
Rel-Tek chases innovation in hydrogen gas sensors
The Pennsylvania-based company was approved for U.S. and Canada for its intrinsically-safe hydrogen gas sensor capabilities Bus propulsion options are always evolving. In the 1990s, gasoline and diesel fuels evolved to cleaner compressed natural gas (CNG), liquefied natural gas (LNG) and liquefied petroleum gas (LPG). In the 2010s, all-electric battery buses were introduced. To extend […]