Feature: For checking TDS/salt (NaCl) levels freshwater aquariums, ponds and water purification systems. 3-in-1 smart pen combines TDS, EC, and a temperature meter for improved accuracy. With an Automatic Temperature Compensation and the measuring range of 0-9999 ppm +/- 2%. Lock function, easy to read and record, press HOLD button then remove from test solution. The instrument will automatically shut down after 5 min of inactivity.
Package Includes: 1 x TDS & EC Meter 1 x Carrying bag 1 x User's manual
How To Use: ▼ STEP 1: Remove the electrode protective cap before use. ▼ STEP 2:Press the ON/OFF button, and immerse the meter into the solution. (The solution should not over the immersion line) ▼ STEP 3: After the numerical display is steady, press the HOLD button and take it out of the solution for checking the result. ▼ STEP 4: Wipe clean the electrode after using, turn off the meter and replace the protective cap.
Note: Please read the manual carefully before using the TDS meter!!! Keep the electrode clean.Always close the electrode protective cap. Please take out the batteries for long periods unused.