KL-139C TDS Tester

Product description :
It is a budget priced pocket size total dissolved solids (TDS),  
tester .   
Automatic temperature compensation ensures correct 
readings.  
The  digital display allows the operator to see the 
readings from every angle.    
Calibration is very simple to perform: immerse the tester 
in the calibration  solution and adjust the trimmer on the 
rear of the meter until the correct  value is displayed.   
For a number of applications, it is crucial to determine 
the quantity of dissolved salts in a body of water. High 
concentrations can cause corrosion and deposits in 
heating systems and can be detrimental to aquatic 
plants and animals.

Acidity meter is a common equipment,also known as PH meter, which is mainly used for precise measurement of pH value of liquid medium, and can also measure MV value of ion electrode potential with corresponding ion selective electrode. It is widely used in industry, agriculture, scientific research, environmental protection and other fields. If the electrode an be properly maintained in use, prepare the standard buffer solution as required and operate the electrometer correctly, which can remarkably reduce pH indication error, so as to improve the reliability of chemical experiment and test data.

Taking the acidity meter produced by Kelilong Electron Co.Ltd in Fujian,China as an example. It usually divided into four categories: industrial on-line acidity mete, table type acidity meter, portable acidity meter and pen type acidity meter.As shown in Figure 1.