The tensiometer is mainly to test surface tension of all kinds of liquids just like water, oil liquid chemicals and so on. It is widely used in the petroleum, chemical industry, research department and university. This instrument is composed by platinum ring , torsion wire, differential transformer and data procession system. Digital display the tension value Test plate height can be adjust automatically According to the ISO 1409 standard If you interested the instrument, please email to me. More information please check Issed by Laryee Technology Co.,Ltd