KETOTEK Digital Water TDS Meter PH Meter, PPM Tester has TDS-EC-Temp (3-in-1) and ±2% Accuracy, PH Tester with 0-14.00PH and 0.01 Accuracy, TDS PH Meters for Aquariums Water, Hydroponics, RO System Description TDS METER Specifications: Measurement range: - Conductivity (EC): 0 - 9 999µs/cm - TDS: 0 - 9 999ppm (Parts per million) - Fahrenheit: 32.0 - 176.0°F - Degree Celsius: 0.1 - 80.0°C Accuracy: ±2% Power Supply: 13V (Cr2032 Button cell) (Included) Operating Temperature: 32 - 122 °F Dimension: 154mm30mm14mm / 6.06”×1.18”×0.55” Net Weight: 55g / 1.94oz Features: Automatic Temperature Compensation (ATC) One button (HOLD) lock the testing result One button (SHIFT) switch the 4 display modes: TDS - ppm & °C, EC - µs/cm & °C, TDS - ppm & °F, EC - µs/cm & °F Automatic shut-off after 5minutes with inactive Non- Calibration required: TDS meter had been calibrated in producingPH METER Specifications: Measure range: 0.00- 16.00PH Resolution: 0.01PH Accuracy: ±0.01 PH Power Supply: 21.5V (LR44 Button cell) (Included) Operating Temperature: 0°F - 140°F Dimension: 155mm 31mm 18mm / 6.10”×1.22”×0.70” Weight: 50g / 1.76oz Features: Automatic Temperature Compensation (ATC) One button (CAL) calibrate the PH meter Automatic shut-off after 5minutes with inactive Calibration: a. Dissolve PH buffer powder in 250ml of distilled water. b. Turn on PH meter and clean the electrode in distilled water, then immerse the electrode in the PH standard solution. c. Press ”CAL” button, make the reading equal to standard buffer solution PH 6.86, 4.01 or 9.18. d. Clean electrode with distilled water and dry it.PACKAGE INCLUDES: 1×TDS meter 1×PH meter 2×PH buffer powder 2×User’s manual Features: WIDELY USED AND ACCURATE. Digital TDS meter has measurement range 0-9999ppm and 2% accuracy, TDS meter can also test the liquid temperature in Fahrenheit or degree celsius. PH meter has measurement range 0.00- 14.00PH, 0.01PH accuracy and 0.01PH resolution. AUTO-OFF FUNCTION AND EASY TO USE. Digital TDS meter and digital PH meter both have the function of Auto-off, it will automatically shut off after 5 minutes of inactivity to save the batterys life. The TDS meter and PH meter both are easy to use, just need to press ON/OFF to open and use it, and just need to press ON/OFF to close it. AUTOMATIC TEMPERATURE COMPENSATION ( ATC ). Digital TDS tester and PH tester both have the function of ATC, the measuring data wont be influenced by the water temperature, no matter testing the TDS-EC or PH of the water. SMALL SIZE AND POCKET PORTABLE. TDS tester and PH tester have small size and low weight as a pen, they are easy to be carried, and convenient for you to take it in your pocket when you go out. Product Details: Brand: KETOTEK Material: Plastic Item Weight: 50 Grams Package Dimensions : 6.97 x 3.23 x 1.65 inches; 1.76 Ounces Item model number : KT-3-1 Batteries : 2 LR44 batteries required. (included) Date First Available : October 12, 2018 Manufacturer : KETOTEK Best Sellers Rank: #153,624 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #256 in Lab pH Meters #1,422 in 3D Printing Filament #256 in Lab pH Meters #1,422 in 3D Printing Filament Customer Reviews: 4.1 4.1 out of 5 stars 421 ratings