Starting at $925.00
  • Usually ships in 1-2 weeks. Call for expedite options



  • 0 to 30V DC voltage range
  • 0 to 24mA DC current range
  • 0.03%RD accuracy (ADT209)
  • 0.01%RD accuracy (ADT210)
  • Simultaneously mA and % span display
  • Auto step, auto ramp, span step functions
  • NIST-traceable certificate
  • HART 250Ω resistor in series with 24V loop

What's in the Box

  • Test lead set
  • Alligator clips (2)
  • Manual
  • One 9V alkaline battery
  • ISO 17025 accredited calibration certificate with data


The Additel 209 and 210 series loop calibrators combine ease of use and functionality, making them the ideal tools to troubleshoot your process loop. The ADT209 has an accuracy of 0.03% of reading where as the ADT210 holds an accuracy of 0.01% of reading. If you want to source, simulate, or simply measure, the Additel Loop calibrator series will fit your need.

The ADT209 and ADT210 measure current, voltage, or a switch. You can also simulate or source mA or a process transmitter. With a push of a button, you can switch to zero and span values, auto ramp, and auto step throughout the range. Each loop calibrator has a large, easy to read screen that simultaneously displays the measurement with the % of span.