Features: 1Salinity meter, can be specially used to determine the salt concentration in liquid or food. 2Adopt ABS shell, copper testing top, corrosion resistance and long service life. 3LED display panel, red light indicates salt concentration, green light indicates power. 4Place the probe above the liquid surface for at least 2 seconds, then the result will appear. 5Sensitive response, high measurement accuracy, compact and portable, easy to operate. Condition: 100% New Item Type: Food Salinity Tester Material: ABS, Copper Model: NS01 Battery Adaptation: 4 x LR44(AG13) Button Battery (Battery Not Included) Test Standard: The temperature of the tested object is 60-80, and test is 2-10 seconds (commonly used salty standard, theory: 993 grams of water and 7 grams of salt give a value of 0.8-1.0) Power Input: 4x1.5=6V Working Current: Maximum 20mA (LED All On) Measuring Range: 0.3%-2.0% Applicable Temperature Range: 60-80 Calculation Formulas: Salt Content = Total Mass x Concentration (For Example: If the total mass of 1 cup of solution is 150g, the concentration is 0.5% 150g x 0.5%= 0.75g) Size: Approx. 212x24.8x15.4mm / 8.3x1.0x0.6in Function 1. Probe: test salt concentration 2. The 7 red LEDs respectively indicate the salt concentration: 0.3% (moderate standard) 0.6% (1.5 times salty) 0.8% (2 times salty) 1.0% (2.5 times salty) 1.3% (3 times salty) 1.7% (4 times salty) 2.0% (5 times salty) 3. 1pcs green LED for power indicator 4. ON button: Press the button and hold it down, the test can be performed when the power is turned on, and the test will stop when it is released. Instructions for Use: 1. Check whether the salt tester probe is clean. If it is not, please clean it with a neutral detergent. 2. The temperature of the soup is between 60-80, insert the probe into the test object, about 2 seconds-10 seconds. When the temperature sensor detects the corresponding temperature, the result is accurate. 3. Press the ON switch of the salt tester to see that the Power indicator lights up green. If it does not light, it means the battery voltage is too low, and a new battery needs to be replaced. 4. Put the probe of the salt tester into the solution at least 2CM and test it at a distance of at least 1CM from the container wall. After the display is stable, read the last reading of the red light that has been lit, which is the detected value. 5. After the test, clean the probe part of the salt tester with a neutral detergent. 6. Brine/pickled vegetables/fermented bean curd/salted eggs, measure the salinity of the variety at a certain temperature and write down the position of the indicator for the result. Use this as the standard for the next test.NS01 Package Included: 1 x Food Salinity Tester (Battery Not Included)