Portable size: this monitor is small enough for you to use on your desk without taking up too much desktop space, and easy for you to carry. Multi-in-1 air quality detector: this detector can be used to detect and display the air quality index at the same time. and other incidental functions. Tft colour display: this air quality monitor is equipped with a large tft colour display, allowing you to see the test data more clearly and get the test results easily. Accurate data: adopting high-precision sensor, high sensitivity, strong anti-interference ability, stable working performance, low power consumption. real-time detection, automatic data refresh, multi-purpose. Strong heat dissipation: hundreds of ventilation holes reserved on the shell can not only accelerate the convection between the air and the machine, so as to achieve effective detection, but also the heat out of the body., Manufacturer: HIJYMNZPQ