Item Type: Digital Salinity Tester Material: ABS Measuring Range: 0 to 100ppt Accuracy: 2%F.S Resolution: 0.1ppt Automatic Temperature Compensation: 0 to 50 Ambient Temperature: 0 to 50 Ambient Humidity: 95% Battery: 1.5V AG13 Button Battery x 4 (Battery Not Included) Application: Suitable for Aquaculture, Drinking Water, Swimming Pool, Aquarium, Food Processing, Laboratory, Paper Industry, Etc Weight: Approx. 135g / 4.76oz1Foldable Design: This digital salinity tester adopts foldable design that allows you to measure water in multi angles. 2High Accuracy: This pool salt tester features high accuracy, quick response and stable performance. 3Durable Material: This digital salinity tester adopts premium ABS material, which is durable and not easy to break. 4Temperature Compensation: This pool salt tester supports automatic temperature compensation from 0 to 50. 5Wide Application: This digital salinity tester is widely used in aquaculture, drinking water, swimming pool, aquarium, food processing, laboratory, paper industry, etc. 1 xDigital Salinity Tester (Battery Not Included) 1 x Screwdriver 1 x User Manual 1 x Box