---
product_id: 125236554
title: "BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG"
brand: "btmeter"
price: "₨2459"
currency: SCR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sc/products/125236554-bt-846a-pro-hvac-anemometer-measures-wind-speed-flow-temperature
store_origin: SC
region: Seychelles
---

# Backlit LCD for easy reading Records 600 wind data sets Measures wind speed in 5 units BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG

**Brand:** btmeter
**Price:** ₨2459
**Availability:** ✅ In Stock

## Summary

> 🌪️ Master the airflow game with pro-grade precision and data power!

## Quick Answers

- **What is this?** BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG by btmeter
- **How much does it cost?** ₨2459 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/125236554-bt-846a-pro-hvac-anemometer-measures-wind-speed-flow-temperature)

## Best For

- btmeter enthusiasts

## Why This Product

- Trusted btmeter brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Data-Driven Decisions:** Stores up to 600 wind data records so you never miss a critical measurement during air balancing tasks.
- • **Versatile Unit Options:** Switch effortlessly between m/s, km/h, ft/min, knots, and mph to suit any professional standard or project requirement.
- • **Precision in Every Breeze:** Accurately measures wind velocity from 0.001 to 100 mph with ±3% accuracy, ensuring reliable HVAC diagnostics.
- • **Built to Last & Save Power:** Replaceable sensor and auto power-off feature extend device life and battery efficiency, backed by a 12-month warranty.
- • **Ergonomic Extendable Sensor:** Separated, extendable wind sensor lets you monitor airflow without awkward positioning—comfort meets functionality.

## Overview

The BTMETER BT-846A Pro HVAC Anemometer is a compact, metal-built airflow meter designed for HVAC professionals. It measures wind speed in five units with high accuracy, records up to 600 data sets, and features a backlit LCD for easy reading. Its extendable sensor and replaceable parts enhance usability and durability, making it an essential tool for precise air balancing and troubleshooting.

## Description

Full description not available

## Features

- ➤【Pro Air Flow CFM Anemometer 】Accurately measures wind velocity in 5 units: m/s, km/h, ft/min, knots, mph. wind temp in ℃/℉ , air flow in CFM CMM. Allows you to record 600 groups of wind data, and comes with carrying storage case that provides good protection and keep everything together.
- ➤【Higher Range Wind Speed Meter 】Higher Wind Speed Range: 0.001~100 mph (Accuracy: +/- 3% +/- 0.2 reading), Resolution: 0.001. Air temperature range 32.0-113.0 ℉(0~45℃), Resolution 0.1. And also provides Current, Max, Min, 2/3 Max, Average of wind velocity, wind flow readings
- ➤【Airflow CFM Meter】BT-846A wind speed gauge measures Wind flow range: CFM 0-999900 ft3/min, Resolution: 0.001-100, Air flow area : 0.001-9999 ft2. You can just set the cross sectional area of the register or vent, the air volume will display in CFM/ CMM synchronously during the air flowing measurement.
- ➤【Separated Extendable Wind Sensor】Built with user-friendly extendable wind sensor vane, so you can still look at the readings easily while you testing balancing the AC or dust collection system. 1.69 x 2.36 inch large Backlit LCD display can help you read the wind changes easily.
- ➤【Must Have for Air Balancing】 Designed for HVAC trouble-shooting, air flow balancing. The separated wind speed sensor can be replaced if it’s broke to increase the service life. Manual or Auto power off after 5 mins without operation to save the battery. 12 months warranty for any quality problem

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | BTMETER |
| Material | Metal |
| Item dimensions L x W x H | 3.4 x 1.5 x 6.5 inches |
| Item Weight | 1.7 Pounds |
| UPC | 778469100677 |
| Manufacturer | BTMETER |
| Product Dimensions | 3.4 x 1.5 x 6.5 inches |
| Item Weight | 1.65 pounds |
| ASIN | B07PVM88GJ |
| Item model number | BT846A |
| Batteries | 1 9V batteries required. (included) |
| Date First Available | March 19, 2019 |

## Product Details

- **Brand:** BTMETER
- **Material:** Metal
- **Item dimensions L x W x H:** 3.4 x 1.5 x 6.5 inches
- **Item Weight:** 1.7 Pounds
- **UPC:** 778469100677

## Images

![BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG - Image 1](https://m.media-amazon.com/images/I/713cFPxPh3L.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

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

**Q: Does it give wet bulb temp**
A: 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

**Q: Can i connect via usb cable to computer to download data?**
A: 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

**Q: What is the thickness of the wind vane sensor?**
A: If you are asking the thickness of the "wind tunnel" housing for the rotating blade it is about 30 mm ! 1.25 inches .

## Customer Reviews

### ⭐⭐⭐⭐⭐ Seems to work very well for a mechanical device.
*by M***H on April 6, 2025*

I’m not a pro, so probably don’t have enough knowledge to evaluate this device fully, but it seems to serve its purpose very well. The handheld sensor (impeller) is lightweight and very low friction. Doesn’t take much air movement to spin it and register a flow rate. Often times I won’t even use the digital console when I’m just looking to see if I have some air flow or nothing. There’s plenty of modes and features in the digital console, but I only use the most basic ones. There’s plenty carrying and storage case is nice to have as I don’t use it much.

### ⭐⭐⭐⭐ Does what it’s supposed to
*by M***E on January 10, 2025*

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.

### ⭐⭐⭐⭐⭐ full featured!
*by D***N on August 22, 2024*

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

## Frequently Bought Together

- BTMETER BT-846A Pro HVAC Anemometer Measures Wind Speed Flow Temperature CFM Air Flow Velocity Meter with Backlight MAX MIN AVG
- Manometer, Professional Air Pressure Meter, Dual-Port HVAC Digital Manometer Gas Pressure Tester,12 Selectable Units Differential Pressure Gauge, (Included Battery)
- Fieldpiece ASP2 Static Pressure Probes

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sc/products/125236554-bt-846a-pro-hvac-anemometer-measures-wind-speed-flow-temperature](https://www.desertcart.sc/products/125236554-bt-846a-pro-hvac-anemometer-measures-wind-speed-flow-temperature)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-28*