【LCD screen】 The ozone detector has 2.8" color liquid crystal display (LCD), 320 * 240 pixels. It is easy to view.
【Accurate Reading】 The onboard fan can draw in the surrounding air to obtain more accurate real-time results.
【USB charge】The ozone detector is equipped with a USB charging port and a large-capacity 1200mAh lithium battery, which is convenient to use. The Micro USB rechargeable battery will warn when the charge is low.
【Exceeding Alarming】Exceeding Alarming with auto detection and auto measuring. If you do not like alarm sound, you can turn it off by pressing the power button 2 times.