SKU: 8721 0025
![]()
The Testo 8721 0025 Air Flow Velocity Matrix is a precision measurement accessory designed for accurate volume flow and velocity measurements on large laminar flow supply air diffusers, HEPA filters, and safety cabinets in cleanroom environments.
When used in conjunction with a Testo differential pressure measuring instrument such as the Testo 420, Testo 480, or Testo 435-4, it enables precise determination of flow velocity and volume flow across large surface areas. Its 360 × 360 mm measurement grid ensures comprehensive air distribution analysis and consistent readings.
The matrix can be combined with an extendable telescope (up to 1800 mm), allowing technicians to easily perform measurements on high ceiling diffusers without compromising accuracy or convenience. Its sturdy and lightweight design ensures stable readings and easy handling during cleanroom verification or HVAC commissioning tasks.
| Parameter | Specification |
|---|---|
| Product No. | 8721 0025 |
| Function | Air flow velocity matrix for supply air diffusers |
| Compatible Instruments | Testo 420, Testo 480, Testo 435-4 (with differential pressure measurement) |
| Measurement Area | 360 × 360 mm |
| Telescope Extension (optional) | Up to 1800 mm |
| Applications | Cleanrooms, HEPA filter testing, safety cabinets, HVAC diffusers |
| Suitable For | Volume flow and velocity measurement on large air outlets |
Data sheet testo 420
Instruction manual: Velocity matrix with telescope for testo 420
FREE SHIPPING ON ORDERS OVER $250. FAST RELIABLE SHIPPING. YOU WILL BE PROVIDED WITH A TRACKING NUMBER ON YOUR ORDER. SO YOU WILL ALWAYS KNOW WHERE IT IS.
DISPATCH TIME -1-3 Days
METRO TRANSIT TIME- 2-4 Days
TRACKING NUMBER- Provided
Advanced Tools has a dedicated Australian based customer service team. There will be no "call backs" "email only" "overseas call centres". Just a phone number and an Advanced Tools employee.
Email: sales@advancedtools.com.au
Phone: 08 7083 9862
Head Office: Unit 5/45 Bunnett St, Sunshine North, VIC 3020 (office only - no shopfront)
Business hours: Monday - Friday 9am-5pm ACDT (Melbourne)
Response Time: We pride ourselves on strong customer service. We will respond to you within 2 hours between Monday - Friday 9am-5pm ACDT (Melbourne)
Advanced Tools is a proud Australian Owned & Operated Business. We are all about supporting other Australian Business' & Brands.
Have you found this product cheaper? Contact us, it is likely we can match or beat it!
Visit our price match policy for more info. Click Here
No risk, easy returns. Every order includes our Return Policy, 30 Day Return Policy.
Click here to find out more.