58139 Noise activated sign - Hearing protection must be worn 300mm dia Safety Sign

A highly visible noise activated warning sign for use in environments where there is a need to clearly warn or indicate when a pre-set noise level is reached. A great solution where noise levels are intermittent or vary significantly such as factories or entertainment venues; Lights up when a pre-set noise level is exceeded; Quick & simple to install: Wall mount and connect to mains via 5m cable; Trigger level: 40dB(A) to 114dB(A) for use in any environment; High intensity white LED for high visual impact and a long operating life; Dimensions: 300mm Diameter, 50mm Depth