Water quality test pen

Water quality test pen Water quality test pen, also known as TDS test pen. TDS Water quality test pen, is a simple portable water quality test tool, used to test the TDS value of water or water conductivity, to judge the water purity or pollution degree. It also has the function of testing water temperature and environment temperature. The product can be widely used in water treatment industry, drinking water industry, family, personal home, tourism, field work, as a water quality inspection and discrimination tool.