7 in 1 PH Meter Temp ORP Salinity TDS meter for Water Quality Tester with 0-14 Measurement Range Suitable Aquarium Swimming Pool

High-concerned chemical : None Is Smart Device : Yes Model Number : PH Meter With Backlight Or Not : Yes Display Type : Analog Brand Name : GUB Origin : Mainland China Certification : NONE PH Meter : TDS PH Meter Water Quality Tester : Water Quality Monitor PH/TDS/EC/Temperature Meter : Temp ORP EC TDS Salinity S.G PH Meter Certification : NONE Origin : Mainland China Display Type : Analog With Backlight Or Not : YES Model Number : PH Meter Is Smart Device : YES PH range : 0.00-14.00 Temperature range : 0.1 ℃ - 60 ℃ 31.2 ℉ - 140.0 ℉ Conductivity range : 0-9999us/cm, 10.01-19.99mS/cm, 20.1-400.0mS/cm TDS range : 0-9999ppm, 10.1 - 200.0ppt ORP range : ± 999mv Salinity range : 0-10000ppm, 10.1-200.0ppt, 0.01% - 25.00% Resolution : 0.01ph,0.1 ℃/0.1 ℉,1uS/cm 0.1mS/CM,1ppm,1mv,1ppm 0.1ppt 0.01% Accuracy : ± 0.5ph,± 0.5 ℃,± 2% F.S,± 2% F.S,± 2mv,± 2% FS. 0.01-5.00% (±0.1%) 5.1-25.0% (±1%) Specific gravity range : 1.000 - 1.222 Battery : 3 * 1.5V (LR44) included, low battery warning Size : 187 * 37 * 37mm Display : LCD digital display Backlight : APP control Temperature : Automatic temperature compensation 0-60 ℃ Waterproof : IP67