Starting at $683.00
  • Usually ships in 2-3 weeks



  • Measuring range: 1 to 30 feet for solids and liquids
  • Accuracy: ±0.25% of detected range
  • 0.1 inch resolution
  • Output: 0 to 2.5 V / 0 to 5 V, selectable, with excitation for data logging
  • Mounting: 2-inch NPT
  • IP65 rated PVDF transducer housing
  • Programming via RST-3001/3002 Programming Module
  • Internet Connectivity with RST-5003
  • Beam Pattern: 9˚off axis
  • Internal Temperature Compensation
  • Supply Voltage: 12-28 VDC
  • AutoSense Software for hassle-free setup
  • CSA general purpose certification


The APG IRU-6420 Level Sensor is an ultrasonic level sensor optimized for data logging with the inclusion of an excitation feature for those applications in which continuous level measurement, even in real-time, isn't enough and data logging is required.

The IRU-6420 series provides a non-contact method of detecting level, presence/absence detection, volume, proximity and distance. The sensor has a range of 1 to 30 feet with a basic accuracy of ±0.25% of detected range. With built in technology to compensate for unpredictable variables such as humidity, temperature and agitators the IRU-6420 is the right sensor for your application. The APG IRU-6420 features APG's AutoSense software for quick and easy programming in a variety of application settings making it hassle-free to set-up the system.

The IRU-6420 level sensors are designed for a variety of applications, and therefore have ample programming options to accommodate many needs. Output is selectable 0-2.5 V/0-5V and an RS-232 option is available.