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8 Vanes
Low friction bearing technology for more accurate measurement.
Dual Wind Chill Sensor
Upgraded Version, more accurate than 1 sensor.
Alexander Stanley
2025-08-22 14:28:56
I specifically used this device to measure air flow from the heater vent registers in my home. Readings were very accurate an greatly assisted in determining resister issues. It is excellent that it uploads data to your computer for real-time display and recording. The carrying is also a big plus.
Pomonabill
2025-08-06 21:12:51
First, the USB connection does NOT power the meter, so if you are going to do long term logging, your battery may die! WHY doesn't the USB power the meter???? What is so difficult to accomplish this?Second, from the videos I have seen and the one that I received, the fan is NOT balanced and has a heavy side. This would affect low air speed measurements!I screwed around with some weights to get the blade somewhat balanced but it is still a little off. Not worth returning because I would just get the same thing.Why is producing a balanced fan so hard????Just shows how cheaply made this is!Also, does NOT do averaging... ONLY min/max/real time.Yet another lie in the description and functionality.Some buttons you hold for 3 second, some for 4... WHY???Pretty poor and sloppy implementation to an otherwise fine instrument... guess you get what you paid for!A hint... check the fan's balance by holding the meter vertical, with no airflow, and see if the fan tries to swing to the heavy side. This will tell you that low speed measurements will probably be wrong.
Jose Figueroa
2025-08-05 16:48:45
Great tool
Thomas Stanley
2025-07-30 17:37:53
Changing UNIT and FUNCTION have to be done every time the unit is turned off.The auto off is very short...not enough time to make RH% readings or TEMP. reading .Not user friendly.Would not recommend.Hope this helps.
Algo
2025-07-24 14:09:34
For some reason I forgot it was an anemometer and that the temperature readings and %RH would change instantly moving from outside to inside with no wind (air flow) outside or inside. I put it in my refrigerator, no air flow, so the temperature readings did not change rapidly, they changed slowly. The temperature sensors are inside the tunnels (or "holes") likely to shade them from radiation (like sunlight) to assure that the readings are for the air flowing through the tunnels. The instructions are helpful, making changes quite easy. And, the software/USB worked without any issues. Time now to get to tuning my HVAC system (air-to-air heat pump with three ducted air handlers for three separate zones). Not bad for tuning the home hot yoga studio either as to desired temp and %RH (as measured at output of a fan).
Clueless
2025-07-14 16:37:24
I wanted to make some psychrometric calculations but was sadly disappointed. Temperature was a few degrees in error but humidity was reading 17% when actual was 44-45%. I have some confidence in the numbers because I laid our three other devices, which were all of difference manufacture but all in agreement and impressively close. Perhaps they were rushing these BT units out the door and forgot to make the calibration. I had no standard for airspeed calibration to compare but after seeing these results I cannot trust any numbers that the BT66 reports.
Jeff Bremer
2025-07-12 09:33:47
Works as advertised. I'm using it to fine tune the dust collection in my wood shop. Technical support is responsive and very helpful.
john borreson
2025-05-25 18:50:28
Easy to use nice unit. Beware it comes with a 6†leash do not install it. When I was testing vacuum CFM the leash got sucked up into the process and broke most of the fan blades in the unit!!! My first time using it😂
Pedro Sebastião
2025-04-15 10:22:10
chegou com defeito e teve de ser trocado. espero que o novo venha ok
B Vringer
2025-04-08 12:11:49
item werkt goed. aan te bevelen prijs/prestatie.
Customer
2025-04-03 16:13:03
Temperature reads 25c even though I had it outside when it was snowing, inside or in the fridge. Returned, can not recommend
MrBang
2025-01-08 12:56:53
It would be nice if it would remember the last settings...
D. J. Lofthouse
2025-01-07 12:41:04
Just not an accurate measure on temp or windWhich is a shame
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