Feature: Folding salinity meter for water is convenient for multi angle measurement. It can be folded when not in use and more convenient to carry after folding. High accuracy, fast measurement response, stable performance and high reliability. Suitable for aquaculture, drinking water, swimming pool, aquarium, food processing, laboratories, paper industry, etc. Made of high quality ABS material, the salinity meter is not easy to be damaged and durable for long time use. Specification: Item Type: Salinity Meter Model: SA-917 Material: ABS Display: LCD Display Measuring Range: 0-100ppt Accuracy: ±2%F.S Resolution: 0.1ppt Automatic Temperature Compensation: 0& 8451;-50& 8451; Ambient Temperature: 0& 8451;-50& 8451; Environmental Humidity: ≤95% Working Power Supply: 4 x 1.5V AG13 (Not Included) Product Size: Approx. 220 x 25.9 x 16.7 mm / 8.7 x 1 x 0.7 in Package List: 1 x Salinity Meter (Battery Not Included) 1 x User Manual 1 x Screwdriver