Can the auto shutoff be turned off so it remains on to collect data over a day or multiple days?

Hi, thanks for asking. Without any key operation and the wind speed sensor is stationary for 5 minutes, it will automatically shut down Feel free to email us for any further questions: BT@BESTMETER.CN

Does it give wet bulb temp

Thanks for asking. Sorry, it doesn't. BT-846A anemometer can measure wind temp in Degrees Celsius / Fahrenheit. If you're looking for a CFM anemometer that also measures web bulb temp, you can check BT-866A, here's the link: https://www.amazon.com/dp/B07RXHFF8G BT-866A can also connect to pc for data log, measures wet bulb temp. If you're interested in more details, feel free to email us bt@bestmeter.cn for a manual

Can i connect via usb cable to computer to download data?

Thanks for asking. BT-846A doesn't support connect to computer, but BT-856A DOES You can choose BT-856A, and install the software from the included CD or email us : bt@bestmeter.cn for the lastest verion

What is the thickness of the wind vane sensor?

If you are asking the thickness of the "wind tunnel" housing for the rotating blade it is about 30 mm ! 1.25 inches .

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BTMETER BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG

BTMETER BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG

Product ID: 125236554

Details

Brand
BTMETER
Item Weight
1.65 Pounds
Item dimensions L x W x H
3.4 x 1.5 x
Material
Acrylonitrile
Number of Items
1

💡Backlit LCD for easy reading

📊Records 600 wind data groups

🌬️Measures wind speed in 5 units

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MX$3550

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Details

Brand
BTMETER
Item Weight
1.65 Pounds
Item dimensions L x W x H
3.4 x 1.5 x

Description

🌪️ Elevate your airflow game—because precision waits for no one!

DATA DRIVEN DECISIONS - Stores up to 600 wind data sets so you never miss a critical airflow moment—perfect for detailed analysis and reporting.
VERSATILE UNIT OPTIONS - Switch effortlessly between m/s, km/h, ft/min, knots, and mph, plus temperature in ℃/℉ and airflow in CFM/CMM for comprehensive environmental insights.
PRECISION AIRFLOW MASTERY - Accurately measures wind velocity from 0.001 to 100 mph with ±3% accuracy, ensuring your HVAC diagnostics are always on point.
ERGONOMIC EXTENDABLE SENSOR - Separated, extendable wind sensor lets you monitor airflow comfortably without losing sight of readings—ideal for balancing AC or dust collection systems.
DURABILITY MEETS CONVENIENCE - Comes with a protective carrying case and moisture-sealed battery compartment, backed by a 12-month warranty to keep your toolkit future-proof.

The BTMETER BT-846A Pro HVAC Anemometer is a professional-grade airflow and wind speed meter designed for HVAC troubleshooting and air balancing. It measures wind velocity in five units with high accuracy, records up to 600 data groups, and features a backlit LCD for easy reading. Its extendable sensor and durable design, including a moisture-sealed battery compartment and carrying case, make it an essential tool for professionals seeking reliable, precise airflow measurements.

Specifications

ASIN	B07PVM88GJ
Best Sellers Rank	#99,987 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #16 in Wind Speed Gauges
Brand	BTMETER
Brand Name	BTMETER
Customer Reviews	4.3 out of 5 stars 234 Reviews
Item Dimensions	3.4 x 1.5 x 6.5 inches
Item Weight	1.7 Pounds
Item dimensions L x W x H	3.4 x 1.5 x 6.5 inches
Manufacturer	BTMETER
Material	Acrylonitrile Butadiene Styrene (ABS)
Material Type	Acrylonitrile Butadiene Styrene (ABS)
Model	BT846A
Number of Items	1
Part Number	BT846A
UPC	778469100677

Reviews

M**H

6.04.2025

A**N

24.01.2020

A**N

3.10.2020

E**C

15.11.2019

E**D

17.04.2022

A**R

9.09.2020

W**W

13.02.2024

T**L

3.12.2023

E**N

9.12.2023

A**A

7.12.2024

R**N

9.05.2023

M**E

20.10.2025

G**T

7.01.2025

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