• High Accuracy Ultrasonic Sensor
  • Input Voltage 20-30 VDC
  • Analog Current Output
  • Analog Voltage Output
  • Short Circuit Protected
  • Wide Temperature Range
  • Temperature Compensation
  • Self Contained Sensor
  • Quick Disconnect Connector
  • Stainless Steel Housing
Image for RPS-412A High Accuracy Ultrasonic Sensor

About the RPS-412A

The RPS-412A is a high accuracy analog ultrasonic sensor (±0.002″ or 0.05% of range, which ever is greater, at 25°C) with a resolution of 0.0005″. The sensor monitors and compensates for air temperature 50 times per second, using the temperature compensation bar located in front of the transducer. The RPS-412A comes in two versions, analog current output or analog voltage output.

The RPS-412A is designed to take advantage of today’s PLC and computer analog input cards. The analog input card will determine the resolution of the system. The analog-to-digital conversion should have, at least, 14 bit resolution. The numerical values programmed into the PLC or computer will determine the zero and span.

Get in Touch

Reach out to our sales team to place an order for the RPS-412A, or any other ultrasonic sensing products.



Model Range Output
RPS-412A-10-A 3″ – 10″ 2.286 mA per Inch
RPS-412A-10-V 3″ – 10″ 1.000 V per Inch
RPS-412A-16-A 3″ – 16″ 1.231 mA per Inch
RPS-412A-16-V 3″ – 16″ 0.625 V per Inch
Accuracy: ±0.002″, or ±0.05% of range (which ever is greater) @ 25°C

±0.2% of range from 0 – 50°C

Resolution: 0.0005″
Power Input: 20-30VDC Reverse Polarity Protected
Input Current: 65mA Typical
Operating Temperature: 0 – 50°C or 32 – 122°F
Humidity: 0% -95% Non-Condensing
Output: Analog Voltage Output, Load 500 Ohms to Infinity, Short Circuit Protected

Analog Current Output, Load 0 Ohms to 500 Ohms Maximum, Short Circuit Protected

Transducer Frequency: 60kHz
Housing: Stainless Steel
Protection: IP10
Sample Rate: 20ms Typical
Update Time: 2s Maximum
Weight: 22 Ounces

Ordering Information

Part Number Range Output
RPS-412A-10-A 3 – 10″ 4 – 20mA Analog Current Output – Cable Sold Separately
RPS-412A-10-V 3 – 10″ 0 – 10VDC Analog Voltage Output – Cable Sold Separately
RPS-412A-16-A 3 – 16″ 4 – 20mA Analog Current Output – Cable Sold Separately
RPS-412A-16-V 3 – 16″ 0 – 10VDC Analog Voltage Output – Cable Sold Separately
F32-5001300 2 meter QD Cable, M12 5-Pin 22 AWG Shielded

Technical Information