PASS ISO 9001 Can judge fruit's mature degree GY-1, GY-2 and GY-3 three kind of models. Brief description:1. Can store 896 peaks of data .The LED show the peaks of data, and get ride of the data .2. Can output data; analyze the data by connected with computer.3. With digital peak value holding function, hold the peak value for 2 seconds and the peak value will be automatically cancelled.4. Green ...