Dultmeier Sales will be closed Thursday, November 26th and Friday, November 27th in observance of Thanksgiving

Dultmeier Sales will be closed Thursday, December 24th at 12pm and all day Friday, December 25th.
Normal operations will resume Monday, December 28th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Friday, January 1st in observance of
New Year's Day

Dultmeier Sales will be closed Thursday, July 4th and Friday, July 5th in observance of Independence Day.
Normal operations will resume Monday, July 8th. We wish you a happy 4th of July!!

We are experiencing some technical difficulties on dultmeier.com and apologize for any inconvenience.
If you are running into issues, please phone your order in to 1-888-677-5054

Customer Pickup Orders: to help reduce exposure for our customers and our employees, if you are placing an order for in-store pickup please call in your order ahead of time or place your order online and pre-pay with a credit card. Be sure to let us know when you plan to arrive. We will have your merchandise ready for you and will greet you outside our facility. Thank you for your help!

Temperature Inversion Tester

Inversion Wand

The SpotOn® Temperature Inversion Tester detects low-level thermal inversions and air temperature at sprayer boom height as required for safe pesticide or herbicide applications. The digital inversion tester enables fast, accurate readings of inversion intensities based upon boom height air temperatures—allowing operators to adjust spray applications to meet chemical label requirements. The inversion tester is completely protected from solar or ground thermal radiation and will automatically detect when conditions are stable. Tester wand folds down for easy transportation and storage.

  • Displays "Inversion Present" or "No Inversion" with intensity shown in degrees based on temperature measurements at 1 meter and 3 meter heights
  • Measures accurate air temperature at boom height to meet new label requirements
  • Radiation shields around temperature sensor provide protection from errors resulting from solar or ground thermal radiation
  • Auto detects when temperature readings are stable
  • Includes NIST-Traceable Certificate for temperature accuracy
  • Backlight on LCD for dawn/dusk or night operation
  • Folds for easy transport and storage. Convenient carry case included.
Item Description Quantity Availability

Unit Price: $380.00/EA

In Stock

Additional Information


    • Range: 0.0 to 150° F.
    • Resolution: 0.1° F.
    • Accuracy: +/- 0.36° F. absolute. +/- 0.18° F. for inversion intensity
    • Battery: Replaceable CR2032 lithium battery (included).
     Provides 100 hours of "on time"
    • Size: 3.5" diameter x 23" folded. 2.75" diameter x 41.5" deployed
    • Weatherproof: IP64 Rated.

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