NOTE!!! 1.Test pure water is 0.0% before every using(±0.2% accuracy),if not ,please calibrate first. 2.Sample quantity:1/2 of the depth of the sampling tank at least. 3.Cleaning measuring tank before measuring and calibration.<br><br>l Accurancy:0.2% l Range: 0-35% l Resolution:0.1% l Ambient Temperature:10-40℃ l Battery:Lithium 1. Calibration: ①Clean the sample chamber and Power on. ②Drop about 0.3ml purified waterat least,close the lid ③Press the "CAL/SET "button to prepare for calibration. ④Twinkling ⑤Press "CAL/SET "button again to confirm the calibration. ⑥It show 0.0% ,calibration succeed 2．How to use: ①Clean the sample chamber and Power on. ②Drop samples. ③Close the lid ④Press "MEAS"button to getdata within 3 seconds. Colour: Yellow Material: Plastic<br><br>Package Contents: 1*Sugar meter<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.