Purity Soft Hard Water TDS EC Temp Quality Tester Quality Filter Pen Test Stick

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%.
--4 Display modes: Press SHIFT button: TDS - ppm & DegC, EC - ? s/cm & DefC, TDS - ppm & DegF, EC - ? s/cm & DegF.
--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.
Measurement Range:
--Resolution: TDS: 1ppm; EC: 1?s/cm
--Battery: 1x3.0V (CR2032) (built-in)
--Conductivity: 0 - 9999?s/cm;
--TDS: 0 - 9999ppm;
--Degrees Celsius: 0.1 - 80.0 DegC,
--Fahrenheit: 32.0 - 176.0 DegF
--Accuracy: 2%
--Size: 6 x 1.2 x 0.6 inches (154 x 30 x 14 mm)
--Net weight: 1.94oz (55g)
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
Package:
TDS & EC Meter x 1 pc
User's manual x 1 pc