The Sound Sentinel. Stick this puppy in the corner of your nearest loud venue and it will automatically switch off the building’s power supply when a preset maximum noise level is reached. The perfect tool for people living next door to rock venues, eh? Woot!
The main unit has a built-in microphone to measure noise levels (remotely mounted microphones are available too). The Sentinel flashes a warning as noise levels approach the maximum permitted for the area. Eventually the red lights on the display flash and if the operator does not reduce the noise levels within a predetermined time, the protected power source will be cut off for a period before resetting. The operator will quickly learn to keep within the agreed noise level.