Without the original packaging, no instructions

Precision particle monitor: This home air quality tester uses a pre-calibrated, precise, professional particle sensor to carefully detect solid particles and PM 2.5, which are a huge threat to human health.

Multifunctional meters 4 in 1: a small device with large functions can also be used to detect formaldehyde and TVOC to say how clean or contaminated is air in the room and help to understand when action should be taken to protect Health.

10 years of research and development in the field of the PM sensor 2.5: Application of the TEMTOP Laser Sensor, British Dart Formaldehyde Sensor. Professional, technologically advanced components that ensure the highest precision and professionalism in detecting needs.

Easy to use: Only one button is used to turn on / off, switching interfaces and automatic loop functions. 3 Color LEDs indicate the quality of air from healthy to unhealthy. A HCHO sensor calibration function is also available.

Why TEMTOP: We work with other professional sensors suppliers around the world, such as Senseaair / Sensirion / Renesas, and we have also been chosen and recognized by several public organizations, including Uchicago and Washington Gov.