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ULTRA-U and ULTRA-U-SS Replacements

Senix customers using the venerable ULTRA-U or ULTRA-U-SS ultrasonic sensors can replace them with either ToughSonic 14 or ToughSonic 30 sensors depending on measurement range and mounting requirements. ULTRA-U sensors have been a popular choice in various conversion applications for more than 20 years.  Thousands are still in service on winders, unwinders, web and roll handling machines around the world.

Our current ToughSonic sensors are superior to ULTRA-U sensors in almost every way.  They use more precise and more rugged piezoelectric transducers and more sophisticated control hardware and software.  They are also rated IP-68 for more challenging operating environments and they now include the higher performance RS-485 serial data interface option. The key operational differences between the ULTRA-U models and their ToughSonic replacements are illustrated in the table below.


ToughSonic 30 ultrasonic sensor logo ToughSonic 14 ultrasonic sensor logo


TSPC-15S-232/U TSPC-30S1-232/U

Ultrasonic sensor ToughSonic 30 Ultrasonic sensor ToughSonic 14

Range 6.5 inches – 37 feet (165 mm – 11.3 m) 10 inches – 30 feet (254 mm – 9.1 m) 4 inches – 14 feet (100 mm – 4.1 m)

 Housing Plastic or 303 Stainless Steel, NEMA-1, IP30 316 Stainless Steel, NEMA4, IP68 (submersable) 316 Stainless Steel, NEMA4, IP68 (submersable)

Temperature 0 – 70C -40 – +70C -40 – +70C

Humidity  5 – 95%, non-condensing 0 – 100%, handles condensation 0 – 100%, handles condensation

Outputs Two transistor switches (NPN) Two solid state switches (NPN or PNP), software-selected Two solid state switches (NPN or PNP), software-selected

Analog 0-10VDC & 4-20mA (8-bit resolution) Analog 0-10VDC & 4-20mA (12-bit resolution) Analog 0-10VDC & 4-20mA (12-bit resolution)

Serial Data: RS-232 Serial Data: RS-232 (RS-485 available) Serial Data: RS-232 (RS-485 available)

Compliance CE CE, RoHS




For detailed product comparisons and instructions on how to convert ULTRA-U wiring to ToughSonic 30 or ToughSonic 14 wiring, please download these conversion documents.

ULTRA-U to ToughSonic 30 (TSPC-15S-232/U) Conversion

ULTRA-U to ToughSonic 14 (TSPC-30S1-232/U) Conversion

If you have any questions about replacing your ULTRA-U or ULTRA-U-SS sensors, please contact us.  We’re here to help!