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🌪️ Elevate your airflow game — precision meets portability in one sleek meter!
The BTMETER BT-866A is a professional handheld anemometer designed for HVAC airflow measurement, offering precise wind speed readings from 0.3 to 40 m/s, temperature, relative humidity, and dew point monitoring. Featuring USB data logging and PC sync, a tripod mount, and a durable aluminum build, it’s engineered for both indoor and outdoor use, making it an essential tool for HVAC professionals and enthusiasts seeking reliable, real-time environmental data.


























| ASIN | B07RXHFF8G |
| Best Sellers Rank | 116,329 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 36 in Anemometers |
| Brand | BTMETER |
| Country Of Origin | China |
| Customer Reviews | 4.0 4.0 out of 5 stars (189) |
| Item Dimensions | 8.6 x 3.8 x 16.5 centimetres |
| Item Weight | 200 Grams |
| Manufacturer | BTMETER |
| Manufacturer Part Number | BT-866A |
| Material | Metal Aluminium |
| Model Number | BT-866A |
| Thread Type | M6 |
| UPC | 778469100936 |
D**L
Works great
Works great as described
D**E
OK
Just not an accurate measure on temp or wind Which is a shame
A**Y
ady
It stop working after 5 min
P**O
chegou com defeito e teve de ser trocado. espero que o novo venha ok
M**C
Den är för liten passar inte luftintaget
B**R
item werkt goed. aan te bevelen prijs/prestatie.
O**S
Received his BT-866A unit today. I bought this to check the air coming out of my hvac vents. The ambient temp in the room is 24c, but the reading on this unit show 27.8c. I put this on the top of the vent to taking quick reading , but the temp reading didn’t move much. For my second test, I left the unit on top of the vent for 10 min and the temp went down to 26.7c, which if completely inaccurate. If the ambient temp in room is 24c, the air coming out of the vent should be at least 10c lower. And I do have any issues with my central air, but the house is staying cool during the heat wave. Dont know how accurate the cmf and velocity because I don’t have any other device to measure those readings. I will do a couple more tests and will be contacting Amazon to figure out what to do
M**G
It would be nice if it would remember the last settings...
Trustpilot
3 weeks ago
3 weeks ago