The housing of this negative ion meter is made of high-strength stainless steel, which is sturdy and durable. The negative ion tester has a liquid crystal display, so the value can be seen even in a dim environment.
The range of this negative ion tester is 0-500 million pcs/cm3, and the measurement range is wide. In addition, we also have a multifunctional negative oxygen ion detector for you to choose from.