Airtightness level detector and electronic device having same

The invention provides an airtight grade detector and an electronic device with the same. The airtightness level detector comprises an air pump, a sound production device and an audio receiving and processing device. The air pump is provided with an air inlet valve and an air outlet valve; the sound production device is arranged near the air outlet valve so as to produce corresponding audio frequency according to the air flow blown from the air pump through the air outlet valve; the audio receiving and processing device is arranged near the sound production device and is suitable for receiving the audio emitted by the sound production device and judging the airtight level of the airtight device according to the received audio. 本发明提出一种气密等级检测器及具有其的电子装置。此气密等级检测器包括气泵、发声装置以及音频接收与处理装置。气泵具有进气阀门与出气阀门；发声装置设置于出气阀门附近以根据自气泵经出气阀门吹出的气流而发出对应的音频；音频接收与处理装置设置于发声装置附近并适于接收发声装置所发出的音频并根据所接收的音频而判断气密装置的气密等级。