KL-139A/B TDS Tester

Description

Product Description TDS is the abbreviation for "Total Dissolved Solid", which refers to the total amount of dissolved solids. Total dissolved solids are a general term for inorganic salts and organic substances dissolved in water. Its main components include calcium, magnesium, sodium, potassium ions, carbonate ions, bicarbonate ions, chloride ions, sulfate ions, nitrate ions, etc. Therefore, a TDS meter is an instrument for testing total dissolved solids. The unit of the TDS meter is ppm (namely mg/L). Its reading is defined as a proportional conductivity value, generally around 0.7. The reference temperature for automatic temperature compensation of the TDS meter is usually 25°C, and the temperature coefficient is generally 2%/°C. KL-139A TDS meter is waterproof with IP55 waterproof rating. KL-139B TDS meter can be wall-mounted or panel mounted, easy for installation, operation and maintenance. It supports both AC and DC power supply.