AMTAST PH Tester without calibration pen, PH meter with temperature function, liquid test for household, beverages, laboratory, etc., resolution 0.01, 0~14 PH range, temperature 0~60℃.

["NO CALIBRATION REQUIRED: This is a small pH meter that does not need to be calibrated for normal use, just one button operation, easy to carry and simple to use. Perfect for any liquid test, widely used in laboratory, wine, juice, swimming pool, and so on.","CALIBRATION FOR PROFESSIONAL USERS ONLY: Although this meter does not require calibration and can be easily reset to factory settings, it can also be calibrated by professional users. Please refer to the USER MANUAL below for details and proper operation.","WIDE PH MEASUREMENT: 0~14 pH range and temperature test function 0~60℃ (℃ display). Long press the power button to start the test, the meter will alternately display the pH and temperature values.","Pen design: Exquisite and small pen design with great white color, light weight, and easy to carry. Comes with user manual and 1.5V LR44 x 3 button cells.","MAINTENANCE: 1. Always clean the sensor with tap water after use. 2. Check the battery compartment to prevent water from entering or the battery from leaking."]