Package includes: 1 x TDS Meter Tester、 1 x Original Leather CaseFeatures: Brand new and high quality Range: 0-9990ppm Accuracy: +/-2% Battery: 2 x 1.5V Button Cell battery (included) Item size:155 x 31 x 23mm/6.10 x 1.22 x 0.91" Temperature range: 0-80?? Save measurements for convenient reading and recording Turns off meter after 10 minutes of non-use to conserve batteries Lightweight and portable、 easy to use