---
product_id: 386510290
title: "testo 405i Hot-wire Anemometer I Wireless Smart Probe for air velocity, in-duct airflow and temperature"
brand: "testo"
price: "₪955"
currency: ILS
in_stock: true
reviews_count: 5
category: "Testo"
url: https://www.desertcart.co.il/products/386510290-testo-405i-hot-wire-anemometer-i-wireless-smart-probe-air
store_origin: IL
region: Israel
---

# 15" telescopic shaft for hard-to-reach spots Bluetooth 4.0 wireless smart connectivity Accurate temp range -20 to 60°C testo 405i Hot-wire Anemometer I Wireless Smart Probe for air velocity, in-duct airflow and temperature

**Brand:** testo
**Price:** ₪955
**Availability:** ✅ In Stock

## Summary

> 🌬️ Elevate your airflow game with testo 405i — precision meets smart mobility!

## Quick Answers

- **What is this?** testo 405i Hot-wire Anemometer I Wireless Smart Probe for air velocity, in-duct airflow and temperature by testo
- **How much does it cost?** ₪955 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.il](https://www.desertcart.co.il/products/386510290-testo-405i-hot-wire-anemometer-i-wireless-smart-probe-air)

## 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

- • **Extend Your Reach:** Telescopic, hinged shaft extends to 15" enabling effortless airflow readings in tight ducts and inaccessible areas.
- • **Wireless Workflow:** Bluetooth 4.0 connectivity syncs seamlessly with your smartphone or tablet for remote monitoring and data logging.
- • **Lightweight Durability:** Compact 119g design with rugged housing ensures portability and impact resistance for on-the-go professionals.
- • **Precision in Every Breath:** Accurately measures air velocity up to 5906 fpm and temperature with ±0.5°C precision for flawless HVAC diagnostics.
- • **Smart Data, Smarter Decisions:** Leverage the Smart Probe App to visualize measurements as graphs and tables, generate custom reports, and eliminate manual errors.

## Overview

The testo 405i is a compact, wireless hot-wire anemometer designed for professional HVAC and air conditioning diagnostics. It features a telescopic shaft extending up to 15 inches for hard-to-access duct measurements, Bluetooth 4.0 connectivity for remote data reading via the Smart Probe App, and precise measurement of air velocity (up to 5906 fpm) and temperature (-20 to 60°C). Lightweight and rugged, it streamlines airflow and temperature monitoring with automated calculations and customizable reporting.

## Description

testo 405i – Digital Thermometer for measuring airflow, air velocity, and temperature on air conditioning systems Measure air velocity, temperature, and volume flow with just one instrument - the durable testo 405i temperature probe provides reliable measurements and, if combined with the smart probe app, allows remote measurement readings. With its automatic calculations, the app erases the need for error-prone manual calculations. Merely download the testo smart probe app, take advantage of user-friendly readings and create custom reports that are quickly saved and retrieved. The telescopic shaft is extendable and rotatable, making otherwise hardly accessible in-duct measurements of airflow fast and easy. The rugged housing protects the device from impact, making it extremely durable. Technical Data:Temperature measuring range: -4° to 140 °F / -20 to +60 °C Temperature measurement accuracy: +-0.9 °F / +-0.5 °C Velocity measuring range: 0 to 5906 fpm / 0 to 30 m/s Velocity measurement accuracy: +-(19.7 fpm + 5 % of mv) (0 to 394 fpm) / +-(0.1 m/s + 5 % of mv) (0 to 2 m/s) / +-(59.1 fpm + 5 % of mv) (394 to 2953 fpm) / +-(0.3 m/s + 5 % of mv) (2 to 15 m/s) Dimensions: 8 x 1 x 2 in. / 200 x 30 x 41 mm Weight: 4.22 oz. / 119.6 g System Requirements: requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0 Scope of Delivery: testo 405i Bluetooth hot-wire anemometer, including 3 AAA batteries and certificate of calibration

Review: I'm on my second one of these. I start up industrial dust collection systems and traditionally use a pitot tube and Dwyer digital manometer. I did several duct balancing trips where I used this and the traditional pitot tube and found this to be extremely accurate and much more user friendly so I now only use this. It has a max velocity of 6,000 FPM, so while it works for traditional dust collection it does not work for high performance applications (like Negative Lift systems). Its minimum temp is somewhere around -10 degF, so it does not work in extreme winter conditions. The bulb is sensitive to buildup, but less sensitive than my collapsible pitot tube. Eventually, the bulb does bend over and even if you straighten it the readings will be incorrect. That's when its time to throw it out and get a new one. Over all, I highly recommend.
Review: 電池の持ちも良いし、手頃な価格で使える測定器

## Features

- RELIABLE; The hot wire anemometer accurately measures air velocity, temperature and in-duct airflow, as well as volume flow if the duct dimensions are provided
- PRACTICAL; With its hinged, telescopic shaft that can be extended to up to 15", the wind meter can be used to measure airflow even in areas that are difficult to access
- PORTABLE; The compact airflow meter is extremely lightweight and time-saving, making it suitable for personal and professional servicing of air conditioning or HVAC systems
- WIRELESS; Equipped with Bluetooth 4.0, the wind speed meter can easily be connected to a smartphone or tablet and offers remote measurement readings
- SMART; The Smart Probe App for testo gauges hvac provides convenient instrument readings as tables and graphs. All measured data can be stored, retrieved, or included in custom reports

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B018VO5GI2 |
| Batteries | 3 AAA batteries required. (included) |
| Brand | Testo |
| Customer Reviews | 4.6 4.6 out of 5 stars (564) |
| Date First Available | 2 March 2016 |
| Item Weight | 119 g |
| Item model number | 0560 1405 01 |
| Manufacturer | Testo |
| Manufacturer Part Number | BAN7013006 |
| Model | 405i |
| Product Dimensions | 20 x 3 x 4.1 cm; 119.63 g |
| Voltage | 4.5 Volts |

## Product Details

- **Brand:** Testo
- **EU Spare Part Availability Duration:** 1 Years
- **Item dimensions L x W x H:** 20 x 3 x 4.1 centimeters
- **Item weight:** 4.22 Ounces
- **Material:** Acrylonitrile Butadiene Styrene (ABS)

## Images

![testo 405i Hot-wire Anemometer I Wireless Smart Probe for air velocity, in-duct airflow and temperature - Image 1](https://m.media-amazon.com/images/I/41jIXLuWH9L.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 R***N on 12 August 2025*

I'm on my second one of these. I start up industrial dust collection systems and traditionally use a pitot tube and Dwyer digital manometer. I did several duct balancing trips where I used this and the traditional pitot tube and found this to be extremely accurate and much more user friendly so I now only use this. It has a max velocity of 6,000 FPM, so while it works for traditional dust collection it does not work for high performance applications (like Negative Lift systems). Its minimum temp is somewhere around -10 degF, so it does not work in extreme winter conditions. The bulb is sensitive to buildup, but less sensitive than my collapsible pitot tube. Eventually, the bulb does bend over and even if you straighten it the readings will be incorrect. That's when its time to throw it out and get a new one. Over all, I highly recommend.

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

電池の持ちも良いし、手頃な価格で使える測定器

### ⭐⭐⭐⭐⭐ Review
*by R***Z on 7 February 2025*

Excelente calidad!!

## 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 Israel*
*Store origin: IL*
*Last updated: 2026-01-24*