1、It displays the salinity value precisely, compact size and light weight, easy and portable to carry, convenient to use. 2、Made of high-quality materials, it is corrosion-resistant, wear-resistant and can be used for a long time. 3、Applicable to freshwater aquaculture, freshwater aquarium, marine aquaculture, seawater aquarium, seawater, brine, soup water, liquid food salinity testing and other water content less than 5% salt. 4、Powered by 4 x 5V AG13 button battery(not included), easy battery replacement, simple operation, easy to use. 5、All waterproof design, and wiht 5 minutes automatic shutdown function. 6、With LED LCD dual display, the measurement results can be clearly and visually displayed. 1 x Salinity Meter Condition: 100% Brand NewItem Type: Salinity MeterMaterial: PlasticColor: As shown in the pictureSize: Approx. 18.5x 3.8x 3.8cm / 7.3x 1.5x 1.5in(without Probe Cover) Weight: Approx.222g/ 7.8ozBattery: 4 x 1.5V AG13 button battery(Not included)Salinity Measurement Range: 0.0% to 5.0%Salinity Resolution: 0.1%Salinity Accuracy: ±1°C/2°FCalibration Point: Nacl Solution: 4.0% point calibrationAutomatic Temperature Compensation: 0~50°CMeasuring Range: Maximum 5%, (0~50000mg/L)