High Precision Digital Water Tester TDS/EC/Salinity/SG/Temperature

5-in-1 MODE: This 5-in-1 pH tester allows you to accurately measure TDS, EC, SALT, SG, and Temp. Clearly understand your water quality to ensure the health of your family. HIGH PRECISION: With a highly sensitive probe, you can quickly read results; a wide measuring range and high resolution guarantee you can measure various types of liquids. AUTOMATIC TEMPERATURE COMPENSATION: With the ATC function, the 5-in-1 pH meter solves the problem of inaccurate measurements caused by changes in liquid temperature; easily obtain a reliable and stable reading. EASY TO USE: After calibration, place the sensor in the solution you wish to test and obtain the data immediately. Before another test, thoroughly wash the probe. Or you may get an inaccurate reading. WIDE APPLICATION: The portable water quality tester can be carried anywhere to measure water quality such as tap water, RO system water, aquarium water, seawater, and swimming pool water. OPERATING INSTRUCTIONS: 1. Press ON/OFF, open the instrument, remove the protective cap, place it in the solution to be tested, and do not immerse it above the immersion line. Then, gently shake it several times in the water to remove bubbles around the electrode and read the correct measurement once the value is stable. 2. Press MODE/CAL to enter different modes. The TDS unit is PPM or PPT, the EC unit is µS or mS, the salt unit is %, and the specific gravity unit for seawater is SG. Press HOLD/TEMP and it will appear in the upper left corner of the screen, indicating that the value has been held. Then remove the meter from the solution and read the value. Press HOLD/TEMP again to exit hold mode. 4. Press and hold HOLD/TEMP for an extended period and the screen will switch between C and F. TROUBLESHOOTING Starts But No Display The battery is not installed, or the battery power is insufficient or not installed correctly: Remove the battery case, reinstall the battery, or replace it with a new battery. Check that the positive and negative battery terminals are correct. Unstable Reading Air bubbles attached around the electrode will seriously affect the reading. To reduce air bubbles, fully immerse the electrode and swing it in the air to eliminate them. The solution may be asymmetrical, leading to unstable readings. The probe is not immersed deeply enough in the solution. The probe is broken: measure environmental interference.