Accurate and Stable Aquarium, Fish Tank and Hydroponic Water Ph Tester ---- Digital Tuya Wifi Smart Water Meter with Atc System and Digital Lcd Display. Download The "tuya" App, Wifi Connection and Easily Get Ph Tds Salt S.g and Temp Readings In Seconds. Intelligent Real-Time Data Transfer To App, You Can View Current Data, Historical Data (30 Days), Abnormal High and Low Data Alerts On Your Mobile Phone. Realise Remote Monitoring, Make Measurement More Accurate and Convenient. Delivered with High-Precision Replaceable Electrodes, Suitable for Water Quality Measurement In Fish Tanks, Marine Aquaculture, Drinking Water, Water Sources, Soilless Culture, Aquariums, Hydroponics, Laboratories, Spas, Environments, Swimming Pools and Water Treatment Systems . Note : Please Read The User Manual for Specific Operation, and Contact Customer Service If There Is Any Abnormality. Long-Term Recording Data, Easy To Analyse and Share Data ----Smart App Supports Exporting Measurement Data As Excel Sheet To Mailbox Function, You Can Easily Export Measurement Data, Easy To Analyse and Share Data, You Can Easily View and Analyse Hourly, Daily, Weekly and Monthly Measurement Data Data. (Data Is Sent To Mailbox As Excel Sheet. Download After Sending Email.) Digital 24-Hour Online Monitoring Instrument, Smart App ---- If You Are Committed To Testing Water In Aquariums, Fish Tanks and Hydroponics, Etc. for Extended Periods of Time, You Need To Take Water Quality Testing Seriously and This Is An Essential Tool That Has A Ph Range of 0-14, Perfect for All Your Needs. The App Is Compatible with Apple and Android, Switching Mobile Phone Language and Region Can Automatically Convert Different Text On The App. Our Service ----Yieryi Professional Water Ph Tester Is Committed To Providing Quality Assured Service. The Electrode Is Replaceable and The Warranty for Non-Human Damage Is 6 Months. If You Are Not Satisfied with Our Water Ph Tester, Please Contact Us and We Will Give You A Satisfactory Answer Within 12 Hours. 5 in 1 PH TDS SALT S.G TEMP Water Tester Specifications : Moder : PH-9951W PH/TDS/SALT Water Quality Tester PH-9951W Voltage220-230 V PH-9951W-US Voltage110-120 V Material : ABS PH Rang0.00-14.00pH TDS Rang0-19900ppm0-199.0ppt SALT Rang0-199.0ppt0%-20% S.G Rang0.990-1.400 Temp Rang0-50(32F-122F) PH Resolution : 0.01PH TDS Resolution : 1ppm(<1999ppm) 10ppm(>1999ppm) 0.1ppt SALT Resolution : 1ppm(<1999ppm) 10ppm(>1999ppm) 0.1ppt 0.01% S.G Resolution : 0.001 Temp Resolution : 0.1C (0.2F) PH Accuracy : 0.03 TDS/SALT Accuracy : 2%F.S Temp Accuracy : 1.0C Package Size: 230 * 155 * 65mm / 9.06 * 6.10 * 2.56in Package weight: 492g / 1.08lb 5 in 1 PH TDS SALT S.G TEMP Meter Contents of The Box : 1* Tuya WIFI Smart PH Meter 1 * Probe 1 * Adapter 1 * Installation Accessory Set