The instrument is a hand-held intelligent multifunctional measurement instrument， integrating noise， illuminance， humidity， temperature and digital multimeter into one. With large LCD digital display (three sets of data display) and backlight， it's easy for user to read， with overload protection and battery undervoltage indication. Whether for professionals， factories， schools， amateurs or family， it's an ideal multi-functional instrument.
(Note: Batteries are not included)

Here is CE certification report about many models of HYELEC (virus-free)
CE certification report