The BS20 structure-borne sound and temperature sensor with accessories for different testing work has been specially designed for the following tasks:
- Status monitoring of machines and systems
- Function checking of steam traps and valves
- Monitoring of bearing wear and malfunction
- Monitoring of lubrication conditions
Frequency range 20 to 100 kHz
Simultaneous analysis of the ultrasound frequency range between 20 to 100 kHz
Integrated infrared temperature sensor
The integrated infrared temperature sensor allows for contactless and quick recording of the test object's surface temperature. The size of the visual recording field depends on the distance between the sensor and the test object.
LED lights
The LED lights act as a torch, making it easier to connect the sensor to test points in poorly lit environments.
Accessories

Long waveguide BS20-2
Applications: Tests on hard-to-access points

Magnetic waveguide BS20-3
Applications: For connection at the test point for long-term testing and for ensuring even contact pressure

Wrench set
for assembling and disassembling waveguides
Technical Data
Structure-borne sound & temperature sensor | |
Device design | Contact sensor for detection of structure-borne ultrasound, interchangeable waveguides, contactless infrared temperature sensor, LED-light |
Operating | Via keys on sensor or via SONAPHONE touchscreen |
Dimensions | 30 x 155 x 30 mm |
Weight | 140 g |
Temperature range | Storing temperature: -20 to +65 °C |
Protection class | IP40 |
Frequency range | 20 to 100 kHz |
Temperature range | -70 to +380 °C object temperature |
Resolution | Ultrasound: 1 dB |
Connector | Cable connection to SONAPHONE |
Accessories | Long Waveguide: |
Downloads
Type | Title | Size |
---|---|---|
![]() | User Documentation Structure-Borne Sound Sensor BS20 | 463 KB |