Safety portal: The safest goes through the air ubiquitous high-risk reminders bridging out the patient safety in emergency department

A detecting apparatus includes a processing device connected to a sensor, a programmable memory device and an alarm device. The sensor generates a signal output that varies according to a detected condition. The processing device includes a converting unit for converting the signal output of the sensor into a digitized value, a memory programming unit for storing a reference value in the memory device, and a comparing unit for comparing the digitized value from the converting unit with the reference value in the memory device. When the processing device is operated in a calibrating mode while the sensor is placed in a standard environment, the programming unit stores the digitized value from the converting unit as the reference value in the memory device. When the processing device is operated in the detecting mode while the sensor is installed in an environment to be detected, the processing device activates the alarm device upon detection by the comparing unit that the digitized value from the converting unit has exceeded the reference value in the memory device.