Handheld 0-55% Digital Brix Honey Auto Refractometer Optometry Equipment For Sugar Coffee Juice Grapes Fruit High Precision Feature: 1. Main uses and scope of application This instrument uses optical principles to professionally measure the sugar content in water samples, food, fruits, and crops. It is widely used in the food industry, beverage industry, agriculture, and agricultural food processing industry. The instrument has the advantages of simple and fast operation, small size, light weight, easy to carry, etc., and is convenient for use on the spot.. 2.Product Features No moving parts, high sensitivity and wide dynamic linear range. The amount of sample and reagent is small, and the analysis speed is fast. Battery-powered, low power consumption, automatic shutdown function for 2 minutes of no operation. Automatic temperature compensation function. Operation mode conversion: refractive index / sugar content. Specification: Accuracy: Brix0.5% Temperature:1 Resolving Power:Brix0.5% Temperature:0.1 Measuring Range:Brix:0.0~55.0% Temperature:10~80 Use temperature:10-40 Sample size: 0.2ml(3-5) drop Measurement Time:3 seconds Batteries:2*AAA 1.5V Batteries(not include ) Remarks: Long press MEAS to measure the target conversion (brix Brixrefractive index RI); long press CAL to perform zero calibration. Do not expose to high temperature and sunlight for a long time to prevent errors and LCD failure. Notes before testing 1.The instrument should work at normal temperature. Before measuring, the instrument and the liquid to be measured should be placed at the same temperature (the temperature difference should not exceed 2C), otherwise the test accuracy will be affected. 2.The liquid to be tested should be shaken evenly during the test. 3.The instrument cannot be operated under strong light. 4.Zero calibration should be performed before measurement. 5.Check the battery level before measuring. Too low a level will affect the test result. Measurement first stepDuring the measurement, put pure water into the water platform of the instrument and wipe it clean with a soft cloth. Second stepPut 3~5 drops of solution into the water platform of the instrument. third stepCover with a light cover. the fourth stepPress the "MEAS" key, the displayed value is the test data.