This multifunctional water quality testing pen is good for assessing the safety of your drinking water. Its compact and sturdy design ensures long-term performance, while the intuitive interface makes it easy to operate. Whether at home or travel, this water tester provides into water quality. Features -Color:White -Material:ABS -Size:15.00X2.50X1.50cm/5.89X0.98X0.59in -Total Dissolved Solids Measure Range:0-9990ppm -Temperature Measure Range: 0-99 degree centigrade; 32-212 fahrenheit scale -High accuracy readings: ensure your drinking water meets safety standards with precise measurements of its mineral content and overall quality -Userfriendly design: simple to operate, this water tester device provides instant results, making it a practical tool for daily water quality assessments -Travel friendly size: designed for portability, this compact water tester fits easily into your bag, making it ideal for both home and travel use -Comprehensive water testing: suitable for various water types, including tap, bottled, and filtered water, to give you a full understanding of water quality -Energy efficient battery: equipped with a longterm battery, this water tester ensures uninterrupted performance for consistent water quality monitoring Package list: 4 x digital water tester with packing box