Model 166T Telescoping Stainless Steel Pitot Tube

Adjustable Design Extends Insertion Length to 36 Inches

The Model 166T Telescoping Pitot Tube is a unique air flow sensor which can quickly and easily be adjusted for any duct insertion length from 11.5 to 36 inches (29.2 to 91.4 cm). Now, this single compact unit can replace up to five conventional fixed length Pitot tubes. For even greater convenience, it is securely protected by a custom fitted polyethylene carrying case. Telescoping sections lock in place as they are extended, enabling use of the handle grip to gage proper alignment of the tip within the airstream. Stainless steel construction resists corrosion. Hemispherical tip has 1.0 flow coefficient, is 1/8" dia. (3.2 mm). Largest section is 3/8" (9.5 mm). Weight (with case) 1 lb, 9 oz (709 g). Case: 12.5 x 6.25 x 1.75 in.

Product Applications

  • Monitor or control air velocity or air flow when combined with differential pressure gage, switch, or transmitter where varying lengths are needed

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Model Description Usually Ships* Price Order
Ships: Next Day
Price: $241.00
Telescoping pitot tube Next Day* $241.00 Order


  • Adjustable length can replace up to 5 fixed length Pitot tubes
  • Stainless steel construction resists corrosion
  • 1.8" diameter hemispherical tip has 1.0 flow coefficient


Product Literature


Catalog Pages




How do you do traverse readings with a Pitot tube for air velocity and air flow readings?
Dwyer has a guide on how to calculate air velocity and air flow with Pitot Tubes including traverse readings located on our website at: Air Velocity Measurement

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