Digital pH value meter + TDS EC temperature gauge: simply immerse it in the solution for 5 seconds to accurately detect the water quality. PH and TDS meters are equipped with reliable automatic temperature compensation (ATC) to accurate readings at different temperatures. Drinking water quality tester with high accuracy: the digital TDS meter ranges from 0-19990 ppm measuring range and 2% accuracy as well as 0 ~ 19990 s / cm conductivity. The pH meter has a measuring range of 0.00 to 14.00 pH, an accuracy of 0.01 pH. LCD display: thanks to its compact size, you can easily take it anywhere. pH meters and digital TDS meters are equipped with an illuminated display, which allows you to read the results of water quality more accurately. It is easy to use even in dark environments. Both have an automatic shut-off function that extends battery life. And you can press the CAL keyboard to calibrate the device. Easy to use and widely used: pH and TDS meters have sensitive electrode sensors, simply dip it in the solution for 4 seconds to accurately check the water quality. and easy to use, as well as illustrated instruction manual in German. It is a good tool in a of applications: e.g. aquarium, pools, fishing industry, swimming pools, spa, laboratory, chemical industry, hydroponics, agriculture, etc. Versatile applications: our pH meter for pH testing different liquids. TDS water hardness meters and EC testers are designed to check the quality of liquids such as drinking water, aquariums, pools, swimming pools, spas, pond, bath water, well water, etc., which can water safety in . A professional gauge to measure the conductivity, water hardness and temperature of all liquids. size: 15.2cm Material: plastic colour: red+white Package Contents: 1 x pH meter 1 x TDS EC temperature meter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.