Search  for anything...
BTMETER

BTMETER BT-100WM Handheld Anemometer, Wind Speed Meter, Digital Barometer

  • Based on 577 reviews
Condition: New
Checking for the best price...
$50.99 Why this price?
Save $119.00 was $169.99

Buy Now, Pay Later

As low as $8.50 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Oct 21
Order within 18 hours and 41 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: BT-100WM Anemometer


Features

  • MULTIFUNCTION ANEMOMETERBT-100WM wind speed gauge meter measures not only Wind Speed, Wind Temp, Wind Chill Indicator, but also Relative Humidity, Dew Point, Barometric Pressure and Altitude. With data log, Tripod hole for mounting, its ideal for outdoor activities Long Range shooting, Hunting, Sailing, Kite flying, Drone Driving, CFM air flow test.
  • HIGH PRECISIONDigital wind meter for measure wind speed range 0.67 ~ 67.1 mph( +/- 5% accuracy) ; Wind temperature range -10~45C,14F-113F(+/-2 C/F);Wind meter measurement altitude from 0-19685 Ft. Resolution: 0.2 mph, 0.2F,0.1% RH. So you can be rest assured to get fast and accurate reading.
  • EASY TO USEMeasures different readings such as Max, Min, Average, Current Wind Speed, display in 5 units: mph, ft/min, km/h, m/s or knots. Temperature (Celsius/Fahrenheit), Elevation(M, Ft), Atmospheric pressure(inHg, hpa mbar). And LCD backlit screen makes it easy to read in day or at night.
  • LOG THE BAROMETER DATAThis handheld wind speed meter can also log 16 groups of barometric pressure data for record, compare and analyse the relationship between temperature, humidity, and height. Its compact pocket sized Pro anemometer for weather station, long distance shooting, HVAC testing
  • SAVE YOUR BATTERYAuto shutdown after 10 mins without operation, low battery indicator to remind you change the battery. 365 day quality assurance, Fast and effective 24 x 7 professional tech support, for any problem, Please get in touch with us whenever you need.

Description

Measure with Precision We BTMETER are dedicated to designing and manufacturing high-quality instruments & devices, especially for wind meter. For every specific need, BTMETER has the answer. Our range of anemometers are designed with versatility in mind. So, whether you require one for domestic usage, for industrial application, or for measuring wind speed indoor/outdoor, you can trust that BTMETER has a device perfectly suited to your needs. A helpful tool for drone flight Air Flow Meter for HVAC CFM Calculation with App Data Logging/Export Thanks to the sensitive dual temp sensors, 8 vanes, the BT-100WM wind speed meter can take accurate wind measurements in HVAC, industrial, hobbyist. The ideal anemometer for hunting, hiking, agriculture, barn ventilation, storm chasing, livestock monitoring, drone flight. Low friction bearing technology for more accurate measurement. Upgraded Version, more accurate than 1 sensor. Features a non-slip design, ensuring a secure grip in any condition. Perfect for both professionals and outdoor enthusiasts. Fix on tripod, for long-term fixed point measuring. Anemometer Barometer Smart Anemometer Handheld CFM Anemometer Split CFM Anemometer Handheld CFM Anemometer

Brand: BTMETER


Material: Plastic


Item dimensions L x W x H: 6.4 x 3.3 x 1.4 inches


Item Weight: 150 g


Item Highlight: Weather Meter for Shooting & HVAC Airflow Checks Temperature, Humidity, Dew Point, Wind Chill, Altitude, Barometric Pressure See more


Brand Name: BTMETER


Item Highlight: Weather Meter for Shooting & HVAC Airflow Checks Temperature, Humidity, Dew Point, Wind Chill, Altitude, Barometric Pressure


Number of Items: 1


Unit Count: 1 Count


Number of Packs: 1


Part Number: BT-100WM Barometer


Warranty Description: 1 year


UPC: 778469100738 681381330988


Manufacturer: BTMETER


Included Components: Instruction Manual


Model: BT100WM


Material Type: Plastic


Item Dimensions: 6.4 x 3.3 x 1.4 inches


Item Weight: 150 g


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • works as expected.
Color: BT-100WM Anemometer
This barometer worked very well for what I wanted it to do during a recent camping trip. It was easy to learn how to use the instrument and I liked being able to check the temperature at my convience.
Reviewed in the United States on July 17, 2026 by david williams sr
    • Great tool
Color: BT-100WM Anemometer
Light price and light weight. Gives you all you need for shooting
Reviewed in the United States on August 15, 2026 by Dave
    • Nice product, lousy documentation
Color: BT-100WM Anemometer
I bought this to use while sailing, both for wind speed and barometer readings for weather forecasting. It does both those tasks well enough. However, it comes with about the poorest user's manual I've ever seen. The one feature that most interests me is the ability to record barometer trends, but the manual only mentions it without explaining how it works. Useless! In the specifications section, there is a table of altitude vs. pressure, but without any indication of the units that are used. (They are meters and millibars.) It would also be nice to have some idea how long a set of batteries will last. The manufacturer should spend a few bucks and get someone who has something more than a Sesame Street grasp of the English language to write the manual. Aside from the documentation issue, I like the product and would recommend it. UPDATE: I ran some checks on this unit and found the following: The battery indicator is misleading. Using the supplied batteries (carbon-zinc, not alkaline - throw them away!), the battery indicator showed zero bars (discharged) after about 10 hours, but the unit continued to run (it does NOT shut itself off automatically) for nearly three more days. During that period, I periodically copied the stored barometer settings into an Excel spreadsheet and plotted the results. Contrary to what is said in the manual, the unit records the barometric pressure HOURLY as long as it is turned on, not every two hours as the manual states. The most recent reading is stored in register one, and earlier readings are shifted up one place when the new data point is stored. So, assuming the unit was powered on for the period of testing, the data in register 16 would be 16 hours old, and the data in register 5 would be five hours old. When I replaced the batteries, the stored data did not disappear, nor did the barometric calibration change. There is no obvious way to clear old data. When the unit is off, no changes to the stored data are made. When the batteries reach a certain discharge level, the backlight will no longer illuminate, and the screen will display "Er2" instead of the usual data. That's your cue to change batteries. When attempting to calibrate the barometer, the settings are made in millibars, not inches of mercury. So, if you know your local barometric pressure, you have to convert it to millibars to get the reading right. (1mb = 0.03"Hg, and 1013mb = 29.92"Hg) If you plan to use the instrument at sea level, and you are somewhere higher than sea level when you do your calibration, you can adjust your local barometer setting downward by 1mb or 0.03"Hg for each 30 feet above sea level your are at the moment. For example, my local barometer setting is 29.92 and I am 150 feet above sea level. I therefore set my barometer to 1008 mb (1013 - 150/30, or 29.92 - 0.15"Hg.) get 29.77"Hg at my elevation. If I then go down to sea level, the pressure will rise to agree with the local barometric pressure. The altitude readout on the instrument is effectively useless because there is no easy way to determine sea level pressure ahead of time, so the altitude reading won't be corrected for sea level pressure. The issued cited above would be problematic for a professional-grade instrument, but, for the price of this unit, you can easily ignore the problems and you can still get useful info. Enjoy! ... show more
Reviewed in the United States on January 4, 2020 by William F. Mcgrath
    • Product worked great no complaints
Color: BT-100WM Anemometer
No complaints and works as advertised. Glad I made the purchase.
Reviewed in the United States on October 14, 2026 by Todd
    • Is NOT consistently accurate! Temp and altitude are wrong, does that mean wind speed is incorrect
Color: BT-100WM Anemometer
Was very excited to get this anemometer to assist me in shooting my 22 pellet rifle. Humidity temperature and wind speed in all affect the projectiles travel and I was hoping this would help me shoot better. No matter which setting you’re trying to access they always default to metric so you have to press the button several times to reach American English measurements: Wind speed; default to meters per second, next press kilometers per hour, next press feet per minute next press knot next press miles per hour. Barometer; default to inches of mercury the USA standard, second press. Hectopascal’s & milibars Altitude; defaults to meters, second press, feet (mine is 60 feet to high) Temperature; default to Centigrade, second press Fahrenheit, third press Relative Humidity (RH). You must leave it in the area to measure for 5 to 10 minutes. Wind; default to meters per second, second press kilometers per hour, third press feet per minute, fourth press knots, fifth press miles per hour. I’ll leave it up to you to decide if the programming of the buttons is convenient for you. It’s a little irritating, but I can live with it. The thing that I can’t live with is that The altimeter is off by 60 feet. How bad will that inaccuracy be at 2000 feet? The temperature is also off from between 4 to 9°. If these two numbers are incorrect, how far off are the wind speed and barometer? I suppose if I’m using just this device for measuring the weather numbers then it should be OK to adjust air pressure settings of my pcp gun to it’s readings. I just don’t know if the numbers will fluctuate. Glad I’m not shooting competition right now. I would send this back except I threw away the box by accident so I can’t return it. ... show more
Reviewed in the United States on May 19, 2026 by Tracy L
    • Does the job
Color: BT-100WM Anemometer
Does the job
Reviewed in the United States on July 26, 2026 by Ed
    • Not everything worked as advertised
Color: BT-100WM Anemometer
This review is for the BTMETER BT-100WM This anemometer seemed to work okay but the altimeter didn't work. I manually calibrated the barometer and the altimeter wouldn't adjust to my altitude. In fact, it showed me at 0 feet even though I'm at over 1000' in elevation. I contacted the manufacturer support and they advised that it should "self calibrate". It didn't. The included batteries died within a couple of hours of use. So I put fresh batteries in it and left it on for two more hours on my desk and the barometer changed with the atmospheric pressure changes but the altimeter didn't change at all. Still showed me at sea level. And there's no way to manually modify your altitude. I did originally buy this for the wind speed measurement but the other features advertised are equally important to me for what I needed to use it for. Also, it's a little too challenging to change the batteries. They provide you with the needed screw driver but those little screws are bound to get dropped or lost. And then once you get them out, it's not easy to remove the battery cover. It's kind of frustrating to be honest. They should have just put a standard push down and slide it off type cover. Overall, the unit is lightweight, compact, and the other features seemed to work okay, I bought it for all of the features advertised, and they didn't all work. Maybe the one I received just had this one flaw and the others are fine. ... show more
Reviewed in the United States on May 7, 2025 by Janie Rocek
    • Windy where you’re flying; you need this!
Color: BT-100WM Anemometer
Great tool when flying RC planes.
Reviewed in the United States on August 5, 2026 by Reese

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...