KL-009(I) Pocket-size PH meter   DEscription: Simple one point calibration Easy to use Economical It is a fast and accurate meter. What you save in buying drop type test kits will more than pay for this meter!  and those kits are not usually very accurate. You will never have to guess which color the ph Strips are closest to! It is fast and simple to use. Just dip it in the pond, aquarium or swimming pool and read the reading on the digital  Display in just a few seconds. this PH Meter is ideal for Aquariums, Aquacultures, Fish Hatcheries, Food Processing, Laboratory, Paper Industry,  Swimming Pool, School & colleges. Specifications: Model PH-009(I) PH-009(I)A PH-009(I)B PH-009(I)C Range 0.0~14.0pH Accuracy ±0.2PH ±0.1PH(25℃) ±0.1PH ±0.2PH ±0.1PH(25℃) ±0.2PH ±0.1PH(25℃) Resolution 0.1PH Temperature Compensation - Automatic,050℃ - - Electrode Fixed PH sensor Fixed PH sensor BNC E-201 BNC E-201 Battery Type 31.5V(AG13) 41.5V(AG13) Weight 51g 51g 70g 70g Color Yellow, Red, Blue, Black, White Environment 0 ~ 50°C;RH≤95℅ Dimensions 150mm29mm20mm

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.