Can this be used to measure air from a floor air vent in an A/C system

If you mean the air flow (speed), then the answer is YES. If you mean the temperature of the air, then the answer is NO (because it is not accurate when it comes to temperature)

what is the purpose of the USB cord?

HOLDPEAK told me that the USB port on the back of the HP-866B-APP is only to provide power to the unit if the batteries are dead or missing, but not for data transfer.

does this have a screw on the bottom to attach to the tripod

Dear kcarter,Hello.I am Cindy from Holdpeak sales support.Yes!Our 866B anemometer comes with a carrying strap which screws into the bottom or you could mount it in a tripod.I hope my answer will be helpful!

I received mine today. Is there any way to adjust the contrast of the display? I can't hardly read mine.

No contrast adjustment that I know of but there is a back light. But there is a back light that might help. Check your battery. It is a bit sensitive to your viewing angle so hold it directly in line with your eyes. But I repeat, check your battery.

Holdpeak 866b App Digital Anemometer Handheld App Wind Speed Meter

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Specifications

ASIN	B01LWU5MM0
Best Sellers Rank	#257,707 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #196 in Anemometers
Brand	H HOLDPEAK
Brand Name	H HOLDPEAK
Country of Origin	USA
Customer Reviews	4.1 out of 5 stars 203 Reviews
Item Dimensions	16.5 x 8.5 x 3.8 Centimeters
Item Weight	0.44 Pounds
Item dimensions L x W x H	16.5 x 8.5 x 3.8 Centimeters
Manufacturer	HOLDPEAK
Material	Plastic
Material Type	Plastic
Model Number	JPHP-866B-APP
Part Number	JPHP-866B-APP

Reviews

J**T

Works great

It’s a little bulky but other than that it does what it’s supposed to.

14.04.2026

M**I

おもしろい

ベランダに出て風力を測定してます。お手軽価格で操作も簡単です♪

19.06.2023

C**N

Útil para medición de la velocidad del viento

Es práctico aunque un poco grande no tan fácil de manipular. En el manual y la app no se indica cómo hacer el enlace con Bluetooth, pero se realiza solo con activar el enlace Bluetooth en el celular. No da opción de enlazar el dispositivo, pero apenas se enciende el anemómetro, se muestran los datos en el celular

26.10.2021

S**R

Nice meter.

Easy to use use. Hand held.

12.03.2026

A**ー

扱いやすい

スマホのアプリと連動でき、扱いも簡単!

6.02.2021

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£86.35

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In stock

Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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TrustScore 4.5 | 7,300+ reviews

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HOLDPEAK 866B-APP Digital Anemometer Handheld APP Wind Speed Meter for Measuring Wind Speed, Temperature, Wind Chill with Backlight (Black)

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