A Mercaptan Sulfur Tester is a device  to measure the concentration of mercaptan sulfur compounds in various substances, such as natural gas, liquid petroleum gas (LPG)etc., it include methods of  gas chromatography (GC) and odor intensity measurement. Potential measuring range=(0 to ±1999.5) Mv; Input impedance=Ri ≥1 × 1012 Ω-omega; Burette capacity=10-ml; Burette accuracy=±0.1 % (F•S);Mercaptan sulfur measuring range=(3 to100)μg/g(ppm),for more visit Labtron.us