The LED display screen includes a microcontroller control unit, infrared sensing unit, voice unit, display unit, and communication unit, which can accurately receive SF without error₆The latest data status of each detection point transmitted by the gas monitoring host is stored. If the data status is normal, it shows that sulfur hexafluoride is normal and oxygen is normal. When a staff member approaches, the infrared sensing unit can sense the person's approach and automatically start the voice unit to report the on-site situation. When the transmitted data exceeds the limit, an alarm will be displayed to remind the staff to pay attention to safety.