Features 1、Automatic Temperature Compensation Function: This fruit sugar meter has an automatic temperature compensation function, which is not affected by the environment and reduces the measurement error caused by different temperatures. 2、Dustproof Protective Cover Design: This fruit sweetness tester is designed with dustproof protective cover, which is easy to clean and suitable for a wide range of solutions for more accurate measurements. 3、Optical Refraction Sensor: This fruit juice sugar tester adopts optical refraction sensor, with accurate measurement, it is more convenient to measure with dropper. 4、Both Sides Non Slip Design: This handheld sugar meter is designed with two sides non slip design, which makes it more convenient to use and not easy to slip off. 5、Good Performance: This sugar meter has good performance, the measuring range is 0‑55% suger content, the resolution is 0.1%, the accuracy is ±0.2%/±0.5℃, one screen with three data, the value is clear at a glance, using LCD liquid crystal screen display, it can display the temperature value, the sweetness value and the refractive index at the same time. Specification Item Type: Sugar Meter Model: ST355A Material: ABS Battery: 1.5V AAA x 3 Batteries (Not Included) Use: Suitable for multiple fields such as fruit sales, cool drinks, carbonated drinks, fruit planting. Basic Parameters: Measurement Range: 0-55% Sugar Content Resolution: 0.1% Accuracy: ±0.2% / ±0.5℃ Refractive Index Display: 1.333-1.426 Application: Suitable for multiple fields such as fruit sales, cool drinks, carbonated drinks, fruit planting. Package List 1 x Sugar Meter 2 x Droppers 1 x Manual