Fluorescent agent cavity detection method, closed constant light, anti-interference professional detection The fluorescent detection value is clear at a glance Standard equipment , a good helper for shopping the harm of excessive fluorescent agents and keep the whole family healthy Hazard level 3-level intuitive display, LED digital display of fluorescent agent content, the instrument directly displays the fluorescent agent hazard level of the item to avoid misjudgment, smarter and more professional, Manufacturer: Akfldms