Ultrasonic flaw detector is a portable industrial non-destructive flaw detection instrument, which can quickly, conveniently, non-destructively and accurately detect, locate, evaluate and diagnose various defects (cracks, looseness, pores, inclusions, etc.) inside the workpiece. It can be used in both laboratory and engineering site. Widely used in boilers, pressure vessels, aerospace, aviation, electric power, petroleum, chemical, offshore oil, pipelines, military industry, shipbuilding, automobiles, machinery manufacturing, metallurgy, metal processing, steel structures, railway transportation, nuclear power, universities, etc. industry.

 The lithium battery of the ultrasonic flaw detector is a 14.8V lithium battery pack made of a single 18650 cell that is packaged in green plastic after being combined in 4 strings and 2 parallels. Here I recommend Shenzhen Guishi South Technology Development Co., Ltd., their lithium battery pack is quite good.