With this digital TDS measuring device you can easily and quickly determine the hardness / conductivity of your aquarium water. The tds measuring device is ideal for measuring aquarium water, pond water, pool water etc.
Two values are commonly used to measure hardness, PPM and EC. PPM or parts per million is often used, for example, to properly measure the dosage of plant food. A tds meter measures the PPM value and an eC meter with conductivity in microsiemens. With the following calculation it is possible to convert the PPM value into Microsiemens.
Measure with the tds meter ec: reading (ppm) x 1.56 = eC.
tds range: 0-9990ppm / mg / l
automatic shutdown: 10 minutes
automatic temperature compensation
Battery: button cell AG13