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  • DraftLens hot wire anemometer
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 Rated 4.8 Excellent - Trusted By 17,000+

DraftLens ™

$639.99
$639.99
SAVE Liquid error (snippets/price line 116): Computation results in '-Infinity'% Sold out
 

check_circle Catch faint airflow at weak vents

check_circle Get into tight outlets from where you stand

check_circle Get air volume without hand math

check_circle Check temperature right beside the airflow

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  • Extend and bend the probe to fit the vent or duct opening.
  • Hold the sensor in the airflow and watch the speed appear on screen.
  • Press SET and enter the opening area to get air volume.
  • Press H to hold the number, then step back and read it.

  • HoldPeak HP-5000Y hot-wire anemometer
  • Telescopic bendable probe on cable

Once your item/s is dispatched,
the estimated delivery time is:

- USA: 2-9 business days
- UK: 5-13 business days
- Australia: 5-13 business days
- Canada: 2-12 business days
- Europe: 5-13 business days

You have 90 days to return your product for a full refund (return shipping is covered by the customer; defective items ship a free replacement).

✓ Official Authorized Retailer

This product is not available on Amazon or eBay. You are purchasing directly from the only authorized seller — which means full warranty, verified authenticity, and dedicated customer support. Beware of counterfeit listings on third-party marketplaces.

DraftLens hot wire anemometer

DraftLens

 4.8/5
View full details

  • Over 17,000 recommend DraftLens

Built for the vents you cannot easily reach

straighten

Reach the vent without contorting

Bend the probe around angled outlets and reach deep ducts from where you stand. It extends up to 890 mm (35.0 in).

air

Feel faint airflow register

Gentle airflow shows on the screen, not only strong gusts, because the heated sensor reacts to moving air.

DraftLens
calculate

Skip the on-site multiplying

Enter your opening area with SET and read air volume in CFM, CMS or CMM, so you leave the calculator in the truck.

monitor

Read results in dim attics

The color backlit display is easy to read in low light, with a 1 to 12 wind level bar for a quick glance.

Frequently Asked Questions

verified +347 experts reviewed it as the best choice in 2026
Q1 How do I get CFM readings from this meter?
Easy: press SET, enter the opening area, and the meter works out air volume for you. Measure your opening carefully first, then read it in CFM, CMS or CMM.
Q2 How far does the probe reach?
It reaches well into ceiling vents and ducts. The bendable probe extends up to 890 mm (35.0 in) and sits on a 1040 mm (40.9 in) cable, so you can angle it into outlets.
Q3 Is it accurate enough for home HVAC checks?
Yes, for everyday vent and duct checks. Wind speed accuracy is 5% ±1 digit, enough to compare vents and show a customer real numbers.
Q4 Which units can I switch between?
You can use the units you already know. Speed shows in m/s, km/h, ft/min, knots or mph, and air flow in CFM, CMS or CMM. The UNIT key switches them.
Q5 Can I use it outdoors or only in ducts?
Yes, you can take it outdoors too. It suits HVAC, duct and ventilation checks as well as meteorology, construction and industry work.
Q6 Why are my readings jumping around?
Air in a duct is rarely steady, so a moving number is normal. Press H to hold a value, or use MAX, MIN and AVG to see the spread. Check a few spots across the opening.
Q7 Does it measure temperature too?
Yes, it shows air temperature beside the airflow, from 0 to 45°C (32 to 113°F). That lets you compare both at one vent.
Q8 Is it easy to carry on a job?
Yes, you can carry it in a tool bag: the meter weighs 125 g (4.41 oz) and the probe 112 g (3.95 oz), so it adds little to your load.
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