The PeakTech 5035 combines a sound level, lux, humidity and temperature meter. It is therefore ideally suited for professional and private use. The sound level meter allows dB measurements, as well as the determination of sound level ratios . With the lux meter it is possible to measure and determine various light conditions, such as the light intensity at the workplace. The measurement is made with a light-sensitive, highly stable silicon diode. The humidity/temperature meter uses a humidity/semiconductor element and a type K sensor to measure ambient temperatures or humidity levels.