The IRU-2420 provides a non-contact method of detecting level, presence/absence detection, volume, proximity and distance. With built in technology to compensate for unpredictable variables such as humidity, temperature and agitators, the IRU is the right sensor for your application.

Hazardous Location Certified
IRU-2420 ultrasonic sensors are suitable for hazardous locations classified under CSA Class 1, Div. 2.

Flexible Programming
This series of ultrasonics was designed with flexibility in mind. It features our AutoSense software for quick and easy programming in a variety of application settings.

A Good Fit
With a 25 ft. range, a 2 in. NPT fitting, and a 4-20mA output, the IRU-2420 sensors work well for many tank level applications.


  • AutoSense Software for hassle-free setup
  • Internal temperature compensation
  • Works on solids and liquids

Technical Specifications


Operating range 1 - 25 ft. (0.3 - 7.6 m)
Beam pattern 9º off axis
Frequency 69 kHz
Accuracy ±0.25% of detected range
Resolution 0.1 in. (2.5 mm)
Response time Programmable (20 ms minimum)


Output 4-20 mA
600 ohms @ 24 VDC
150 ohms @ 12 VDC
4-20 mA with (2) NPN outputs


Ratings IP65
Operating temp -40º to 140ºF (-40º to 60ºC)


Total current draw 75 mA @ 24 VDC
Supply voltage 12-28 VDC
Wiring connection 4 or 5 conductor shielded cable


Materials PVDF (Kynar®) transducer housing
PC/PET upper housing
Transducer type Ceramic, PVDF faced


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