The Model FAFM Fan Inlet Air Flow Measuring Probes use evenly distributed total and static pressure measuring points to deliver an accurate measurement of flows in a fan inlet. The Air Flow Measuring Probes can be completely installed from outside of the fan making it ideal for when proper duct locations are unavailable. With its lightweight and durable construction in addition to its ease of installation, this product lends itself to being used in the HVAC industry.
There are two versions of the model FAFM fan inlet air flow probes to choose from depending on the depth of the fan inlet.
For fan inlets with depth less than 3-12" (8.89 cm): Please order a fan inlet probe with an "S" suffix. This probe has a diameter of .375" (.95 cm). It employs one total flow measuring tube and one static measuring tube. Each probe is covered with an extruded aluminum anodized coat. Each measuring tube has multiple sensing points.
For fan inlets with depth greater than 3-12" (8.89 cm): Please order a fan inlet probe with a "D" suffix. This probe has a diameter of 3-12" (8.89 cm). It employs extruded aluminum anodized coated probes with both total and static sensors on each tube.
Please Note: These are sold in sets of two. A set is necessary in order to ensure an accurate reading. No more than two air flow measurement probes will be needed to obtain an accurate reading.

The Model FAFM Fan Inlet Air Flow Measuring Probes use evenly distributed total and static pressure measuring points to deliver an accurate measurement of flows in a fan inlet. The Air Flow Measuring Probes can be completely installed from outside of the fan making it ideal for when proper duct locations are unavailable. With its lightweight and durable construction in addition to its ease of installation, this product lends itself to being used in the HVAC industry.
There are two versions of the model FAFM fan inlet air flow probes to choose from depending on the depth of the fan inlet.
For fan inlets with depth less than 3-12" (8.89 cm): Please order a fan inlet probe with an "S" suffix. This probe has a diameter of .375" (.95 cm). It employs one total flow measuring tube and one static measuring tube. Each probe is covered with an extruded aluminum anodized coat. Each measuring tube has multiple sensing points.
For fan inlets with depth greater than 3-12" (8.89 cm): Please order a fan inlet probe with a "D" suffix. This probe has a diameter of 3-12" (8.89 cm). It employs extruded aluminum anodized coated probes with both total and static sensors on each tube.
Please Note: These are sold in sets of two. A set is necessary in order to ensure an accurate reading. No more than two air flow measurement probes will be needed to obtain an accurate reading.