Salinity Meter RZ118 Separation Tool Wire to measure circuit thread

Wire to measure circuit thread through round hole on right of voltmeter

A cushion sponge pad

- Step6: nsure that the battery holder has been clamping the battery

real-time detection of fast charging voltage and current to meet fast charging needs

Salinity Meter RZ118 Separation Tool Wire to measure circuit threadThis refractometer is used in salt solution testing, seawater control industry and aquariums, oceans, fisheries, farms in the salt content of seawater, and low concentrations of salt in processed foods, or used to detect the specific gravity of the salt solution. Can also be used for medical institutions, university research and so on. If you grow your own fruit and vegetables to produce homemade pickles or to freeze, this refractometer will give you