① Wi-Fi Button ⑨ Buzzer On lcon
②Settings Button ⑩ Wi-Fi Normal Icon
③ Buzzer/Indicator Light Switch ⑪ Wi-Fi Error Icon
④ Multicolor LED Indicator ⑫ Monitored Value Display
⑤ LCD Display ⑬ Concentration Unit
⑥ Power Input Interface (Type-C) ⑭Current Humidity
⑦ Stand ⑮Current Temperature
⑧ Buzzer Off lcon
