TDOFYH 7-in-1 Water Quality Tester pH/TDS/EC/ORP/S.G/Salinity/Temp, Replaceable Electrode, Backlit, for Aquariums, Drinking Water, Pools

---------------------------------------------------------------------- This product is a multi-functional water pen that can measure pH, TDS solubility, S.G. specific gravity of seawater, ORP oxidation-reduction potential, EC conductivity, salinity, and temperature. It is a waterproof water quality testing pen with high performance, a pen design, and fast readings. It offers stable and accurate calculation results. Includes instructions in Japanese. With an IP67 waterproof rating, it can be even if dropped into a water tank, making it more convenient to use. The probe is replaceable, automatically calibrated, highly accurate, reliable, and easy to operate. It supports backlighting, has a 5-minute automatic power-off function, and is lightweight, compact, and portable. EC conductivity: 10.01-19.99 ms at 0-10000 uS/cm, 20.1-400.0 ms/cm; Food salinity: 0.00-25.00%, Seawater salinity: 0-1000 ppm, 10.1-200.0 ppt; TDS solubility: 0-10000 ppm, 0.1-200.0 ppt; ORP oxidation-reduction potential: 0 - ±999 mV; S.G. specific gravity of seawater: 1.000 - 1.222 This product is an economical, reliable pH meter (also known as a pH pen or pH tester) ideal for testing many applications such as hydroponics & gardening, swimming pools & spas, aquariums & reef tanks, alkaline ionized water, seawater, drinking water, boilers, and more. It has automatic calibration (2-point automatic calibration, 3-point calibration also possible) and automatic temperature compensation. Functionality: Accuracy is relatively accurate within 150 ppt, but the deviation becomes relatively large beyond 160 ppt. This product is a multi-functional water pen that can measure pH, TDS solubility, S.G. specific gravity of seawater, ORP oxidation-reduction potential, EC conductivity, salinity, and temperature. It is a waterproof water quality testing pen with high performance, a pen design, and fast readings. It offers stable and accurate calculation results. With an IP67 waterproof rating, it can be even if dropped in a water tank, making it more convenient to use. The probe is replaceable, automatically calibrated, highly accurate, reliable, and easy to operate. It features backlight support, a 5-minute automatic power-off function, and is lightweight, compact, and portable. It includes automatic calibration (2-point automatic calibration, 3-point calibration also possible) and automatic temperature compensation. Simply immerse the electrode in the pH (6.86, 4.00) standard solution and press the CAL button for automatic calibration. pH: 3-point automatic calibration (6.86 and 4.00 & 9.18 pH); TDS: 1413 μS/cm; EC: 1413 μS/cm. EC conductivity test range: 0-10000 μS/cm, 10.01-19.99 mS/cm, 20.1400.0 mS/cm (range automatically converted); Resolution: 1 μS/cm; 0.1 mS/cm; Accuracy: ±2% F.S. TDS dissolution pH Test Range: 0-10000ppm, 10.1-200.0ppt (automatically converted) Resolution: 1ppm; 0.1ppt Accuracy: ±2% F.S. Salinity Seawater salinity range: 0-10000ppm, 10.1-200.0ppt, Food salinity range: 0.01%-25.00% Resolution: 1ppm; 0.1ppt; 0.01% Accuracy: ±2% F.S.; 0.01-5.00% (±0.1%); 5.1-25.0% (±1%) pH Range: 0.01-14.00rH Resolution: 0.01pH Accuracy: ±0.05 ORP Oxidation-Reduction Potential Range: ±999mv Resolution: 1mv Accuracy: ±2mv S.G Seawater specific gravity range: 1.000 - 1.222 Product specifications: Waterproof level: IP67 Temperature: ATC 0-60° Operating environment: 0-60.0℃ (32.0-140°F); RH 100% TDS coefficient: 0.5 Temperature range: 0.1-60.0C 32.0-140° Temperature accuracy: ±0.5 Temperature resolution: 0.1°C/°F Auto shut-off: 5 minutes Display: LCD digital display Backlight: Optional backlight Note: Clean the electrodes after use. Dimensions: 3 * 1.5V (LR44) Screen size: 33 * 24mm Dimensions and weight: 183 * 37 * 37mm (7.2 * 1.5 * 1.5in) / 90g [Water quality measurement/pH measurement/TDS measurement/EC measurement/ORP measurement/Salinity measurement] ① Remove the protective cover and switch on ② If you want to use EC/PH/TDS/ORP/Salinity meter mode, press the "Switch and MODE/CAL" button to switch modes ③ Immerse the titanium probe in water ④ Gently stir the water quality meter to remove any air bubbles attached to the probe ⑤ After about 10 seconds, press the "HOLD" button to lock in a stable value, lift the meter, and read the measured value ⑥ Press the switch off button and wipe the probe to complete.