Purchase a testo 420 air flow capture hood between June 15 and August 30 and receive the first NIST Re-calibration FREE!

How to Qualify for and Redeem your Promotion Offer:

  • Buy a NEW qualifying testo 420 air flow capture hood from any Testo distributor between June 15 and August 30, 2018.
  • Complete and accurately provide all of the required customer information on the above form.
  • Review the Terms and Conditions below for additional requirements and other important information.
  • Mail the completed Redemption Form along with a legible copy of your original invoice (purchase order copies are insufficient) to:

Testo North America
ATTN: 420 NIST Promo
40 White Lake Road
Sparta, NJ  07871


testo 420 Air Flow Capture Hood

The CEC compliant testo 420 air flow capture hood with Bluetooth is the accurate, lightweight, and convenient solution for measuring volume flows at supplies and returns. Handling this air flow capture hood with its flow straightener and tiltable display is especially easy, with its low weight of less than 6.4 lbs, 24" x 24" included hood dimensions, and ergonomic handles.

  • Rugged and durable 24" x 24" air flow capture hood weighs less than 6.4 lbs (with base)
  • Large, tiltable, removable backlit display makes readings easy to see
  • Flow straightener for more precise measurement at turbulent outlets
  • App integration via Bluetooth for fast and easy monitoring and reporting on site