Before measurement : Turn the dial to make the drive the first pointer dial scale line aligned (GY-1 type of scale line 2,GY-2and GY-3 type of scale line 0.5 ) ; slashing fruit to be tested 1 cm2 of skin around . Measurement : with the hand hardness, total hardness measured perpendicular to the surface of the fruit , the indenter is pressed into the fruit evenly , then a pointer indicating the start of driving for driving the hands rotate , when the pressure to the line ( 10 mm ) of the stop , reading the pointer is indicating the hardness of the fruit , the average times taken . After the measurement : Rotating the knob back to zero , so that the pointer is reset to the initial mark. The measurement should be loosened before tightening the knob , turn the dial to drive the pointer ( straight ) line is aligned with the original scale , and then tighten the fastening knob. Check the instruction pointer is a pointer to the right of the driver , and if you find it is not, you should rotate the knob back to zero , so that the right side in the driving instruction pointer pointers. The product is divided into GY-1, GY-2, GY-3 three models used to measure apples, pears, watermelons , bananas and other fruits of hardness , to determine the maturity of the fruit , the cultivation of a reasonable grasp seeds, harvesting time , processing time , harvest storage, export and transportation of picking., Manufacturer: CFWWSAQ