Features Place the probe at least 2cm / 0.8in above the liquid surface and will get accurate data. Test method for conductivity for determination of salt concentration in liquid foods. With 7 LED indicator light displays, red light indicates salt concentration, green LED light indicates power supply. Compact size and light weight, easy and portable to carry, convenient to use. The pen type salinity meter is a precision instrument for testing the salinity value of a solution. Features: 1. Place the probe at least 2cm / 0.8in above the liquid surface and will get accurate data. 2. Test method for conductivity for determination of salt concentration in liquid foods. 3. With 7 LED indicator light displays, red light indicates salt concentration, green LED light indicates power supply. 4. Compact size and light weight, easy and portable to carry, convenient to use. 5. The pen type salinity meter is a precision instrument for testing the salinity value of a solution. Specification:  Item Type: Salinometer  Material: ABS+Copper Liquid Level Indication: 0~1.5% Power supply: 3 x LR44 Button Battery (Not Included) Environment Temperature: 0-80℃ Package List:  1 x Salinometer   1 x Fluid Container 1 x Instruction  Note: Please note that the color of the salinometer penpoint will be sent randomly, and make sure you will not mind before ordering. Package List