the water quality of the tested water, so that you can drink or use more at ease. If you are interested in this product, come and have a try, it will not let you down.<br> Mobilephone APP Remote View:<br> After connect with your mobilephone correctly through the BT, all testing results can be viewed on the APP.<br> Large LCD Display Screen with Backlight:<br> The large display screen with backlight allows you to read the testing data normally even in dim light or even in total dark, and you can turn on/off the backlight on your mobilephone.<br> IP67 Waterproof:<br> The IP67 waterproof level makes this product can be normally used in water and can provide a long service time.<br> You can set a high or low PH/EC/ORP limit according to your needs, when the test results is above or below the range, the value will be displayed in red to alarm you.<br> Specifications:<br> Material: plastics<br> PH:<br> Ranges: 0.1-14.0pH<br> Resolution: 0.1pH<br> Accuracy: 0.1pH<br> CL:<br> Ranges: 0.1-4.0mg/L<br> Resolution: 0.1mg/L<br> Total Dissolved Solids:<br> Ranges: 0-999ppm, 1000-9990ppm<br> Resolution: 1ppm, 10ppm<br> Accuracy: 2%F.S<br> ORP:<br> Ranges: -999<br> 43;999mV<br> Resolution: 1mV<br> Accuracy: 15mV<br> Temperature:<br> Ranges: 0.1~80<br> xff0c;32.1~176.0<br> Resolution: 0.1<br> Accuracy: 0.5<br> Calibration:<br> pH: 6.8/4.0/9.2 or 7.0/4.0/1.0<br> ORP: 256mV<br> ATC temperature: 0.1~60<br> Environment: 0.1~80, RH: max 90%<br> Total Dissolved Solids factor: 0.1-3.0 (factory default 0.5)<br> EC Temp. Compensation: 0.1-3.0 %/ (Factory Default 2.0 %/C)<br> BT: 5.2 version<br> Waterproof: IP67<br> Battery: 3 * AAA battery<br> (included)<br> Data storage: can store the latest 1000 records of data<br> Package size: 160 * 100 * 100mm / 6.3 * 3.9 * 3.9in<br> Package weight: 210g / 7.4ounce<br> Packing list:<br> 1 * Water Quality Tester