Air Ventilation Low Pressure Alarm, if air flow duct is low pressure, the sensor will start the alarm

Due to the impact of noise at the work site, the personnel on duty are generally unable to timely and effectively detect the shutdown of the fan and promptly conduct emergency repairs or switch to the standby fan, often resulting in a state of indoor air circulation, affecting production and endangering personal safety. In response to this situation, the installation of a sound and light warning device for fan shutdown can enable the on-duty personnel to promptly detect the shutdown of the main fan, timely activate the emergency mechanism, reduce the scope of accident impact, and ensure safe production