Spectrogram display Waveform screen

This product is unique in that it performs automatic wheeze and crackle analysis in real time. Users are directed to record, visualize and interpret their own and classmates' lung sounds with the 1 Channel Automated Stethoscope. Users can compare their interpretations with automatic lung sound analyses of normal and abnormal sounds. The 1 Channel Automated Stethoscope Waveform screen is pictured above.

How to buy

The STG for PC system consists of three parts:
1. The Windows PC, usually a laptop or netbook.
2. The electronic Stethoscope Cardionics eScope or modified acoustic stethoscope STG Stethoscope.
3. STG for PC™ software for sounds recording, visualization, and analysis. To purchase the STG software from Stethographics, please use PayPal or send check to Stethographics (email Please download the the STG software from here and install it on your device. The STG software will generate the DeviceID. Please email the DeviceID to and we will respond with the Unlock code. We are normally able to respond within one business day.

Recording techniques

Holding a chest piece by hand often generate artifacts that make visual display unreadable. If you have this problem (and most people do), we suggest that you attach the chest piece to skin so that you do not need to hold it. There are several attachment methods you can use:
1. Just place the chest piece on bare skin. If the chest piece is heavy enough it will stay in place.
2. Attach the chest piece with 3M Double Stick Discs (SKU B11687). You can order it here: 3M Double-Stick Discs pack of 102 Size 1 1/4" 3M SAS2349 (HC) 3M 2181 (Pack).
3. Use a rubber belt to hold chest piece in place. We prefer maternity belt used to hold a doppler monitor in place when the hospitals want to hear the fetal heartbeat for an extended time. It's made of very soft, pliable and stretchy material. You can order it here:, Toco Abdominal Belts, Model ABC-4425

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Product Brochure (PDF file - 461KB)
STG User Manual (PDF file - 146KB)

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