DMA 35 is a portable digital densitometer used to directly measure density, specific gravity, and concentration at the sampling site. It can withstand the impacts and splashes encountered during outdoor use. DMA 35 Ex and DMA 35 Ex Petrol are the only explosion-proof portable density meters on the market, suitable for use in hazardous areas and certified by the new EU Directive 2014/34/EU. DMA 35 Ampere is an ideal solution for measuring the specific gravity of sulfuric acid during the production and maintenance of lead-acid batteries