Visually check the fracture surface of metal and polishing situation
On 2014-09-28 18:52:18
[My opinion] It was sufficient function and performance for me. 【Features】 · Tightly adhered to the object to see the object 1 mm stronger · Image reversed vertically and horizontally · Focus adjustment is necessary when zooming 【Noticed】 · Initially the LED does not light up However, when we removed the glue attached to the battery, the lamp turned on and it became available. The cellophane tape attached the battery to the wrapping paper, the glue sticking to the positive side of the battery, poor contact, it seems that it was not conducting.