Description
Noise Warning Sign
dB display with 75 mm digit height / 30 … 130 dBA measuring range / LED display / Wall mounting / Integrated condenser microphone
The noise warning sign is used to measure and display sound pressure levels continuously. It is commonly used in schools, open-plan offices, bars, clubs, and event venues. The large digits of the display make it easy to read, even in dark environments. The noise warning sign can be powered by USB or an external battery pack.
The measuring range of the instrument is from 30 to 130 dB. It displays the measured value in A-weighted units and always uses fast time weighting. The microphone has a frequency range of 31.5 Hz to 8.5 kHz. The noise warning sign can be connected to a PC via USB for live measurement transmission. It also has an internal memory that can be read with software.
Level of noise
Noise levels in public places, workplaces, recreational areas, and homes should be controlled and kept within health care standards. Excessive exposure to noise is prohibited by law. Noise warning signs provide immediate indication when the noise level is hazardous and may cause hearing damage. They also notify that noise levels need to be reduced, especially for people living in surrounding neighborhoods.
Spectrum of applications
Noise warning signs have a wide range of applications, including construction sites, industrial facilities, factories, schools, libraries, and medical institutions. Each application can have its own noise limit. These signs are easy to mount and have various designs. They provide a clear indication in public places to reduce noise and in industrial facilities to wear hearing protection when necessary.
Green or red correspondingly
The warning signs differentiate noise pressure levels and provide color indications from green to red accordingly. In rooms with many people, such as libraries, classrooms, canteens, or offices, a red light indicates the need to reduce noise. Noise warning signs contribute to creating a comfortable and safe environment in various spheres of life, whether it is work, recreation, studying, or treatment.
- 75 mm / 3 in digit height
- 30 … 130 dBA measuring range
- 0.1 dB or 1 dB resolution
- Wall mounting
- Power via micro USB socket
- Alarm function
- For offices, schools, event rooms, shop floors, production units
- Memory for 657,000 readings








