Feature:_x000D_ _x000D_ The test value of the tester is reliable and the operation is simple and fast. _x000D_ Compact and portable pen design, easy to operate and storage. _x000D_ Large and clear LCD, easy to read and accurately measuring functions. _x000D_ The tester is made of high quality electronic components to ensure high accuracy. _x000D_ The resolution of conductivity tester is 2%F-S, very high sensitivity. _x000D_ _x000D_ Specification:_x000D_ Model: EC-138_x000D_ Accuracy: 2%F-S_x000D_ Voltage: 1.5V_x000D_ Measure range: 10-1990uS/cm_x000D_ _x000D_ Application: Measuring the conductivity of liquids _x000D_ Product dimension: 150*29*15mm / 5.9*1.1*0.6in_x000D_ _x000D_ Weight: 115g / 4.1oz _x000D_ _x000D_ Package list:_x000D_ _x000D_ 1 * Conductivity Meter(No including battery) _x000D_ 1 * Screwdriver_x000D_ _x000D_ _x000D_ Note:_x000D_ The actual product color may deviate from the photo due to light._x000D_ There may be a slight deviation in the measurement of product.