Specification Brand : Yewhick BulletPoint1 : 5-in-1 pH TDS Meter for Drinking Water: Yewhick drinking water TDS tester can measure pH, TDS, EC, Salt, and temperature with high precision. The measurement range is large and wide, so you can measure the various indicators of water according to your needs. All-round measurement of water quality, drinking good water boosts the body's metabolism and makes it healthier BulletPoint2 : Highly accurate and stable: More precise accuracy design and larger testing range than other products to ensure your drinking water is healthy. ±0.01 accuracy; 0-14pH, 0~200000ppm TDS, 0-200000us/cm EC, 0.01%-25% 0-1000ppm Salt measure range of the digital pH meter sure you get an accurate testing result BulletPoint3 : Easy to Use and Calibrate Free: The pH tester has been calibrated at the factory before shipment, no need to re-calibrate, it is ready to use right out of the box. If you need to recalibrate the water pH meter uses a three-point calibration method to calibrate the electrode to pH 4.00, pH 6.86, and pH 9.18 solutions. Measurement accuracy is easily ensured with a simple calibration BulletPoint4 : Auto Power Off and Backlit Display: After 5 minutes of inactivity, the meter automatically turns off to save power. A large display with a green backlight makes it easy to read pH, TDS, EC, salinity, and temperature meter readings from unusual angles and in low light conditions BulletPoint5 : Multifunctional pH meter with wide use: The pH water tester is an indispensable tool to improve your quality of life. This digital pH tester can be used for drinking water quality tests, swimming pool quality monitors, pH balance measurements in RO / DI systems, aquariums, spas, whirlpools or hydroponics, etc IncludedComponents : 1 x 5-in-1 Water Quality Tester; 1 x 4.00 ;6.86;9.18 Calibration Powder ItemName : Yewhick pH and TDS Meter, Digital pH Tester for Water, 5 in 1 pH/TDS/EC/Salinity/Temp Tester, PPM Meter Water Tester for Household Drinking, Pool and Aquarium, with ATC, 0.01 Resolution ItemPackageDimensions_Height : 1.88 inches ItemPackageDimensions_Length : 8.2 inches ItemPackageDimensions_Width : 3.4 inches ItemTypeKeyword : science-lab-ph-meters Manufacturer : Yewhick ModelNumber : YY-9909G-Plus NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : YY-9909G-Plus ProductDescription : Yewhick pH and TDS Meter, Digital pH Tester for Water, 5 in 1 pH/TDS/EC/Salinity/Temp Tester, PPM Meter Water Tester for Household Drinking, Pool and Aquarium, with ATC, 0.01 Resolution Specification: -Brand name: Yewhick -product name: Digital pH Meter for Water -weight: 0.17kg -Product size: -- 5 IN 1 water quality tester: 23 * 8.2 *8.2cm / 9 * 3.2*3.2 inches Package content: --- 1 x 5 IN 1 water quality tester --- 1 x Product Manuals --- 1 x 4.00 pH calibration powder --- 1 x 6.86 pH calibration powder --- 1 x 9.18 pH calibration powder --- 1 x 12.88uS/cm calibration powder