1. The sound level meter use a capacitive microphone sensor for excellent sensitivity and accuracy 2. The digital sound level meter has a large, backlit screen to easily cope with harsh environments such as bright light or at night 3. Decibel meter has a windproof hood design, which can receive sound more accurately and filter the influence of wind on sound 4. With a frequency response, noise meter can measure a wide range of frequencies 5. Small and lightweight, this sound meter can be taken anywhere for on the go measurements, Manufacturer: YXZKJZJ