Product Description: Discover the NS01 portable salinity tester, the indispensable tool for accurately measuring the salt concentration in your liquids and foods. Designed to seamlessly integrate into your daily cooking routine, its compact and lightweight design makes it easy to use in any kitchen. Key Features: Compact and Portable Design: Its ergonomic design allows for easy transport and convenient use, whether you're at home or on the go. Quality Materials: Made with a robust ABS casing and copper test elements, ensuring durability and reliable measurements. Intuitive LED Display: Equipped with a clear LED panel that indicates salt concentration with a red light and power status with a green light for immediate readings. High Accuracy: Provides reliable and precise measurement results, crucial for controlling the salt content in your cooking. Instructions for Use: For optimal results, simply place the probe above the liquid's surface for at least 2 seconds. The device quickly displays the measurement, allowing you to adjust your recipes with confidence. This product is sold by xiaosong on behalf of a third-party seller; it is a compatible product. None of the products offered in this store come with two batteries; they are powered by a single battery. Note: 1. Due to variations in lighting and screen settings, the product color may differ slightly from the images shown. 2. Please allow a measurement error of 1-3 cm due to manual measurement. 3. Please check that the size is suitable before purchasing. Thank you for your understanding!