BTMETER Por HVAC Anemometer -CFM Meter Gauge Tester w/USB Data Export to PC | Air Flow Velocity Meter Measure Wind Speed, Wind Flow, Wind Temp Max Min Avg BT-856A 600 Sets of Data Records LCD Backlight

The BT-856A does measure air velocity and air volume. It is easy to use and provides the data I required. I needed additional sensors and the manufacturer quickly provided an Amazon link to order additional sensors. BTW, the additional sensors were very reasonably priced and arrived quickly.

The meter works well and is reasonably accurate as compared to a professional meter. Definitely not professional quality but decent value. My only real negative is that the turbine blade is not dynamically balanced so it slightly tracks gravity. This means that at very low flow rates (within spec), if the turbine is anything other than horizontal it may not start turning.

works as expected ,easy to use, good software (windows 10 only supported) and is accurate.

I used the anemometer to help balance a central air conditioning system with this device by taking air flow readings of the entire house and then balancing out the stronger air flow rooms and minimizing them to send more air flow were it was lacking and the home. owner is extremely happy and It wouldn't of been possible with exact measures and readings that this device have me of not i would still be there balancing the house to get it rite

This is a professional quality meter. For me, the primary purpose was for home HVAC testing/balancing. It performed its job well. Also helps to know temperature of air flowing. One downside was the instructions provided - not well written and not easy to find what you may want to do; even if all the functions are present.

The BT Meter Model BT-856A Anemometer is hard to read with the poor to non-existing backlight; the screen functions are impossible to read except for temperature and velocity. The manual is a shameful tenth (10TH) generation copy the is hard to read after scanning and enlargement by 300%. I cannot read the supplied printed "Manual" because of the letter size. The software does not load and the website link provided has nothing to do with software download. It appears to me nothing has changed over the years BT Meter has had to correct known problems. I will be returning the BT-856A anemometer to Amazon.

I built a hood to go over 2x2 ceiling diffusers In order to more accurately and consistently gather cfm readings throughout our 5,000 square foot facility that has 3 independent furnaces with multiple zone setups, dozens and dozens of vents to test etc. I didn’t have any issue with the battery door cover as others have mentioned. The backlight not staying on is a huge blunder in the design of the display. You constantly have to turn it back on after it times out in like 5-10sec. The instruction manual is terrible. There’s definitely a learning curve in calculating the surface area of your HVAC duct sizing in square inches, converting that to square feet and then entering that parameter into the meter. I also found a 5-6cfm difference in my readings when I used the built in averaging feature of the unit vs me taking a max and min reading of a vent and then deciding that sum by 2 to get my average. The built in averaging function always came out lower for me. But, it was minimal difference. Overall, this meter does exactly what I needed it to do and at a fraction of the cost vs what you’d typically have to spend on something like this. A few hours in the garage building the hood and I can slide this meters fan right into its receiver slot and I used a cell phone holder mount to hold the units display so I could use both hands to hold the hood up to the ceiling diffuser. Not shown in the picture is a 10 foot extension pole so I don’t have to climb up on a ladder to reach ceiling diffusers in our commercial building. Overall, there is a learning curve to use this meter for cfm readings. Basic wind speed is much easier. But if you’re an intuitive person it’s pretty easy to figure out. Happy with my purchase thus far I just wish the backlight stayed on! Seriously, what were they thinking only having it stay on for such a short amount of time. So stupid.

This is a perfect solution for confirming airflow measurements in our fume hoods.

Attention le logiciel fournit n'est pas celui présenté. Imposible de suver les données enregistrées. Il y a esquroquerie. Amazonne devrait interdire cet objet. De plus le retour est payant !! Inadmissible

Easy to use and works as expected. Priced reasonable and fast shipping. Case is durable and nice to have. Many uses for on the job or at home

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