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Dri-Eaz

Dri-Eaz F251 Moisture Probe 31 in Telescoping Stainless Steel

SKU CH-NRHS-WVEB8

A telescoping stainless steel moisture probe extending to 31 inches with a 17 percent humidity alarm threshold

  • typeClosed Base
  • Telescoping design extends from 21 in to 31 in for deep reach
  • Stainless steel construction resists corrosion in damp environments
  • 17 % humidity alarm alerts when moisture exceeds threshold
  • 9 V battery powers probe for portable operation
  • Closed base tip measures moisture without surface damage

Dri-Eaz F251 Moisture Probe

The Dri-Eaz F251 is a telescoping moisture probe designed for restoration professionals and facility managers. It extends to an overall length of 31 inches and retracts to 21 inches for compact storage. The probe tip diameter measures 7/8 inch and features a closed-base design made from stainless steel. A 9V battery powers the integrated humidity alarm set at 17 percent.

Ideal Use and Limitations

This probe suits technicians who need extended reach to monitor moisture in deep cavities, subfloors or behind walls without demolition. It is not for users who require a non-telescoping rigid probe, a different alarm threshold or a probe tip with a larger or smaller diameter than 7/8 inch. Builders needing multi-point data logging or wireless transmission should look at other instrument types.

Deciding Specification: Telescoping 31-Inch Reach

The single specification that decides fit is the telescoping range from 21 to 31 inches. If the inspection depth exceeds 31 inches or the access opening cannot accommodate a 7/8 inch tip, this probe will not reach the target area. Verify the required insertion depth and clearance before selecting this model.

Highlights

  • Telescoping design extends from 21 in to 31 in for deep reach
  • Stainless steel construction resists corrosion in damp environments
  • 17 % humidity alarm alerts when moisture exceeds threshold
  • 9 V battery powers probe for portable operation
  • Closed base tip measures moisture without surface damage

Specifications

BrandDRI-EAZ
typeClosed Base

Questions about this item

What humidity level does the alarm trigger at on the F251 probe?

The alarm sounds when humidity reaches 17 percent, alerting you to excess moisture during drying jobs.

What are the retracted and extended lengths of the telescoping probe?

The probe retracts to 21 inches and extends to 31 inches for reaching into cavities and under cabinets.

How is the 9 V battery installed in the moisture probe?

Unscrew the closed base cap, insert a 9 V battery observing the polarity marks, then tighten the cap until the O-ring seats to maintain the seal.

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