METER, EX PETROL PROTABLE DENSITY DMA35, MUST BE ANTON PAAR PART NO 87451, Battery-powered portable lab instrument for determination of density, specific gravity and concentration of liquids. With integrated temperatue compensation and RFID interface for quick sample identification. Resistant to petrochemical samples. DIMENSIONS 5.5 x 5.4 x 1.0 inches, WEIGHT 14 OUNCES.