Feature: 1. Made of high-quality plastic materials, corrosion-resistant, wear-resistant, and long service life. 2. The salinity value can be accurately displayed. The salinity meter is small in size, light in weight, convenient to carry. 3. With LED display, the measurement results can be clearly and visually displayed, you can read easily. 4. Powered by 3pcs 1.5V LR44 160mAh battery(not included), easy battery replacement, simple operation, easy to use. 5. Suitable for the detection of salt content in freshwater aquaculture, freshwater aquarium, marine aquaculture, seawater aquarium, seawater, brine, soup, and liquid food. Specification: Condition: 100% Brand New Item Type: Salinity Meter(Battery not included) Material: Plastic Color: Blue and White Weight: Approx. 161g / 5.68oz Salinity Range: 0.1-20.0% Resolution: 0.1% Accuracy: 1% Power Supply: 3Pcs 1.5 V LR44 160mAh Batteries(Battery not included) Size: Approx. 21 x 4 x 3cm / 8.27 x 1.57 x 1.18in Package List: 1 x Salinity Meter(Battery not included) 1 x Manual Note: 1. Please allow 0‑2 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.