---
product_id: 740822708
title: "testo 405i anemometer"
brand: "testo"
price: "165829CFA"
currency: XOF
in_stock: null
reviews_count: 13
category: "Testo"
url: https://www.desertcart.sn/products/740822708-testo-405i-anemometer
store_origin: SN
region: Senegal
---

# 15.7 inch flexible shaft Bluetooth smartphone app integration 0-30 m/s wind speed range testo 405i anemometer

**Brand:** testo
**Price:** 165829CFA
**Availability:** ❌ Out of Stock

## Summary

> 🌬️ Measure the unseen breeze like a pro—anytime, anywhere!

## Quick Answers

- **What is this?** testo 405i anemometer by testo
- **How much does it cost?** 165829CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/740822708-testo-405i-anemometer)

## Best For

- testo enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Battery Life:** Powered by included AAA batteries ensuring long-lasting, uninterrupted field use.
- • **Precision Wind Metrics:** Accurately measures wind speed, temperature, and airflow for professional-grade data.
- • **Compact & Portable Design:** Lightweight and pocket-sized for on-the-go measurements without bulky equipment.
- • **Extended Reach Flexibility:** Flexible 15.7-inch shaft lets you easily access hard-to-reach ducts and vents.
- • **Smartphone-Powered Analysis:** Seamlessly syncs with your phone to display real-time graphs and tables via Bluetooth.

## Overview

The testo 405i is a compact, heat-wire anemometer that measures wind speed (0-30 m/s), wind temperature (-20 to +60 °C), and airflow with professional accuracy. It connects via Bluetooth to a dedicated smartphone app for intuitive data visualization and analysis. Featuring a flexible 15.7-inch shaft, it enables easy in-duct measurements, making it an essential tool for HVAC professionals and engineers seeking precise, portable wind measurement solutions.

## Description

Testo 405i is a heat-wire wind speed smart probe that can measure wind speed, wind temperature and air flow. Small and portable, the measurements can be viewed via Bluetooth communication on your smartphone or tablet. In addition, the dedicated app calculation and display function make it easy to obtain professional analysis results. Accuracy range: 0 - 15 m/s

Review: 電池の持ちも良いし、手頃な価格で使える測定器
Review: 値段が安い割りに正確な風速が測れて優れものでした。表示がスマホになるのですが、本体に表示がなくてもあまり気になりませんでした

## Features

- Measures wind speed, wind temperature and air flow
- Enter duct information into the smartphone app to measure air flow
- The flexible shaft extends up to 15.7 inches (400 mm) for easy in-duct measurement
- The app allows you to display measurements in graphs and table formats
- -20 ~ +60 °C (NTC)
- 0 ~ 30 m/s (heat wire)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018VO5GI2 |
| Amazon Bestseller | #6,539 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Optical Equipment & Measurement |
| Batteries | 3 AAA batteries required. (included) |
| Batteries Included | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,297) |
| Date First Available | December 3, 2015 |
| Included Components | No |
| Is Discontinued By Manufacturer | No |
| Item Dimensions LxWxH | 20 x 3 x 4.1 cm |
| Item Thickness | 30 Millimeters |
| Item Weight | 119 g |
| Manufacturer | テストー(Testo) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Measurement Accuracy | -20~+60℃ |
| Number Of Pieces | 1 |
| Part number | BAN7013006 |
| Power source type | air_powered |
| Product Dimensions | 20 x 3 x 4.1 cm; 119.63 g |
| Style | testo 405i Heat Ray Anemometer |
| Voltage | 4.5 Volts |

## Product Details

- **Brand:** Testo
- **Item Weight:** 4.22 Ounces
- **Item dimensions L x W x H:** 20 x 3 x 4.1 cm
- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Voltage:** 4.5 Volts

## Images

![testo 405i anemometer - Image 1](https://m.media-amazon.com/images/I/21TsctLAEWL.jpg)
![testo 405i anemometer - Image 2](https://m.media-amazon.com/images/I/31acDXnnb1L.jpg)
![testo 405i anemometer - Image 3](https://m.media-amazon.com/images/I/41-WjEDiYHL.jpg)
![testo 405i anemometer - Image 4](https://m.media-amazon.com/images/I/41IAqyELfYL.jpg)
![testo 405i anemometer - Image 5](https://m.media-amazon.com/images/I/41frfFpM-EL.jpg)

## Questions & Answers

**Q: Can you use it to measure air mass? Like kg / hour? And does it compensate for air temperature and air pressure?**
A: It measures air velocity, period. Does not compensate for pressure or temperature. Does not measure air mass flow directly.

**Q: Can it calculate or convert to Feet per minute?**
A: Here are the specs you are looking for:

Measuring range: 0 to 6,000 fpm
Accuracy: ±(20 fpm +5 % of m.v.) (0 to 394 fpm) / ±(59 fpm +5 % of m.v.) (394 to +3,000 fpm)
Resolution: 1.97 fpm
Volume flow: (cfm) 0 to 99,999 cfm (Resolution: 0.1 cfm)

**Q: Can you use it to measure the delta?**
A: There's a trendline function that can keep track of changing temp over time.

**Q: Does this device show a live CFM reading?**
A: Why yes it does sir

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by と***。 on September 4, 2025*

電池の持ちも良いし、手頃な価格で使える測定器

### ⭐⭐⭐⭐⭐ Review
*by 大***橋 on April 1, 2022*

値段が安い割りに正確な風速が測れて優れものでした。表示がスマホになるのですが、本体に表示がなくてもあまり気になりませんでした

### ⭐⭐⭐⭐⭐ Review
*by P***I on April 18, 2023*

使用にあたっては専用アプリをインストールしたスマホ(またはタブレット)が必須です。本体には測定結果の表示部はありません。私は経時ログを取る必要があったのでそれでもよいのですが、単に風速を測定したいだけの方には本体＋スマホの２台持ちになるので少し面倒かもしれません。 なお、そのアプリですが、「testo Smart」でないと動きません。製品の梱包箱に「Download testo Smart Probes APP」と書かれた小さな紙が入っていたのですが、その「testo Smart Probes」は別のアプリ(旧製品用？)でありこの製品とは接続できません。紛らわしいのでご注意ください。この紙がなぜ入れてあるのか不可解です。 アプリ自体の機能は必要十分と思われます。Amazonの説明文に書かれていること以外に下記のことができます。 ・風速の単位：m/s, mph, km/h, fpm ・測定間隔：1sから23h59m59sまで1s刻みで任意 ・タイマー測定可能 ・気圧補正機能あり ・ログはcsvあるいはjsonでエクスポート可能 とても小型で、折りたためばポケットにも入ります。しいて言えば三脚等に固定するためのネジ穴がないことだけ残念ですが、大きさとの兼ね合いでこうなったのかもしれません。 ともあれ、ログ取り可能な熱線式風速計がこれだけ手軽に手に入るのは本当に嬉しいです。

## Frequently Bought Together

- testo 405i – Anemometer handheld for air velocity, in-duct airflow, and temperature – CFM meter with Bluetooth and App operation
- Testo 605i | Thermohygrometer for Indoor Temperature and Humidity Measurement | with Bluetooth Support
- Testo 0560 1510 510I Differential Pressure Manometer Smart and Wireless Probe, 1" Height, 1" Width, 6" Length

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-24*