Jerome by AMETEK Arizona Instrument offers easy to use, rugged and reliable instruments for measuring mercury vapor in air. the Jerome J505 is the most current model in the Jerome line of mercury vapor analyzers. It is lightweight, portable, durable, and is the only hand held atomic fluorescence spectroscopy mercury analyzer on the market. the J505 is capable of detecting as little as 0. 05 µg & m³ mercury vapor, Effluent Treatment ...