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testo 405i Anemometer Handheld for Air Celocity, In-Duct Airflow and Temperature CFM Meter with Extendable up to 15 Telescopic Shaft - Wind Meter with Bluetooth and App Operation
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testo 405i Anemometer Handheld for Air Celocity, In-Duct Airflow and Temperature CFM Meter with Extendable up to 15 Telescopic Shaft - Wind Meter with Bluetooth and App Operation
The testo 405i HVAC smart probe accurately measures air velocity, temperature and in-duct airflow, as well as volume flow if the duct dimensions are provided.
testo 405i Anemometer Handheld for Air Celocity, In-Duct Airflow and Temperature CFM Meter with Extendable up to 15" Telescopic Shaft - Wind Meter with Bluetooth and App Operation
Item #: 4924419

testo 405i Anemometer Handheld for Air Celocity, In-Duct Airflow and Temperature CFM Meter with Extendable up to 15" Telescopic Shaft - Wind Meter

87% of respondents would recommend this to a friend

Item #: 4924419

XCD 450

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The testo 405i HVAC smart probe accurately measures air velocity, temperature and in-duct airflow, as well as volume flow if the duct dimensions are provided.
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What Stands Out

Bluetooth Connectivity
Equipped with Bluetooth, the testo 405i seamlessly connects to a dedicated app, providing remote monitoring and easy data management, enhancing user convenience for real-time airflow analysis.
Versatile Measurements
This handheld anemometer measures air velocity, in-duct airflow, and temperature, making it a comprehensive tool for HVAC professionals, ensuring accurate diagnostics in various environments.
Compact Design
The testo 405i boasts a lightweight, ergonomic design, ensuring portability and ease of use, perfect for technicians on the go, delivering reliability without compromising on performance.

Product Details

Shop testo 405i Anemometer Handheld for Air Celocity, In-Duct Airflow and Temperature CFM Meter with Extendable up to 15 Telescopic Shaft - Wind Meter with Bluetooth and App Operation online at a best price in Antigua and Barbuda. B018VO5GI2
  • Measures air velocity, temperature, and in-duct airflow with possible volume flow calculation
  • Telescopic shaft extends up to 15 inches, facilitating airflow measurement in hard-to-reach areas
  • Extremely lightweight, compact, and durable, suitable for personal and professional servicing of HVAC systems
  • Equipped with Bluetooth 4.0 for wireless connection to smartphone or tablet, with readings displayed through Smart Probe App
  • App enables remote measurement readings, data storage, and custom report generation
  • Provides accurate measurements with a wide range of temperature and velocity measurement capabilities, with convenient operation via App

Who Should Buy?

Suitable For
  • HVAC Technicians

    Ideal for HVAC specialists needing precise airflow measurements in ducts and real-time data via Bluetooth.

  • Field Engineers

    Perfect for field engineers who require portable devices for quick and accurate air velocity tests on-site.

  • Environmental Monitors

    Beneficial for environmental agencies assessing air quality and ventilation efficiency in various settings.

Not Suitable For
  • Casual Users

    Not suitable for casual users or those with no specific need for detailed air measurement capabilities.

Product Description

testo 405i Anemometer Handheld for Air Celocity, In-Duct Airflow and Temperature CFM Meter with Extendable up to 15" Telescopic Shaft - Wind Meter with Bluetooth and App Operation

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are the main features of the testo 405i anemometer?

    Answer: The testo 405i anemometer showcases several cutting-edge features including Bluetooth connectivity, a mobile app for easy operation, and precise measurement of air velocity, temperature, and in-duct airflow. This handheld device is designed for professionals who need quick and accurate readings in various environments. The app enhances user experience by enabling data logging, analysis, and reporting directly on your smartphone or tablet, ideal for HVAC technicians and facility managers.
  • Question: How do I connect my testo 405i to the app?

    Answer: Connecting your testo 405i to the app is straightforward. First, ensure that your anemometer’s Bluetooth is enabled and then download the 'testo Smart App' from your device’s app store. Open the app and follow the prompts to pair your device. Once paired, you can easily view real-time measurements, utilize advanced calculation functions, and save your data for future reference. This feature is particularly beneficial for monitoring multiple air velocity points in duct systems.
  • Question: What is the measurement range of the testo 405i?

    Answer: The testo 405i is engineered for versatility, featuring a measurement range that accommodates air velocity from 0.3 to 20 m/s, airflow in ducts, and temperature from -20°C to 60°C (-4°F to 140°F). This wide range makes it suitable for various applications, from indoor air quality assessments to HVAC system diagnostics. Users can depend on the testo 405i for accurate readings in low-flow environments or high-speed conditions, enhancing its utility in different settings.
  • Question: Can the testo 405i measure in-duct airflow?

    Answer: Yes, the testo 405i is specifically designed to measure in-duct airflow effectively. Utilizing the included pitot tube, it captures accurate airflow measurements to help assess the performance of HVAC systems and duct installations. This is particularly useful for technicians who need to diagnose airflow issues or optimize system efficiency. The real-time data output aids in quick assessments, ensuring that technicians can make informed decisions.
  • Question: Is the testo 405i suitable for indoor air quality assessments?

    Answer: Absolutely, the testo 405i is an excellent tool for indoor air quality assessments. By measuring air velocity and temperature while integrating with the testo Smart App for comprehensive analysis, it offers insights into ventilation and air distribution in indoor spaces. This aids building managers, facility operators, and HVAC professionals in ensuring optimal air quality and system performance, which is crucial for health and comfort in workplaces or residential settings.
  • Question: How does the battery life of the testo 405i perform?

    Answer: The testo 405i is designed with efficiency in mind, featuring a battery life that can last several hours on a single charge, depending on usage. It utilizes rechargeable batteries, minimizing the need for constant replacements. This longevity facilitates extended job performance without interruptions, making it ideal for professionals conducting thorough field assessments and ensuring reliable functionality throughout the day.
  • Question: What types of professionals typically use the testo 405i?

    Answer: The testo 405i is widely used by HVAC technicians, facility managers, and indoor air quality professionals. It serves as an essential tool for those who need precise measurements to ensure optimal airflow in heating and ventilation systems. Furthermore, its Bluetooth connectivity and app integration appeal to tech-savvy professionals looking for advanced data analysis and reporting, enhancing their diagnostic capabilities in a variety of environments.
  • Question: Does the testo 405i have data logging capabilities?

    Answer: Yes, the testo 405i includes built-in data logging capabilities, allowing users to record measurements for further analysis. The connection with the testo Smart App provides a streamlined way to view and analyze historical data, making it easier to identify trends and changes in air velocity and temperature over time. This feature is invaluable for HVAC professionals conducting long-term assessments or projects requiring continuous monitoring.
  • Question: What is the significance of the CFM measurement feature?

    Answer: The CFM measurement feature on the testo 405i is critical for assessing airflow in cubic feet per minute, which is essential for evaluating the performance of HVAC systems. This metric helps professionals determine if the systems are operating efficiently and if they meet desired specifications. Accurate CFM readings contribute to effective ventilation planning, ensuring comfort and air quality in various applications, including residential, commercial, and industrial settings.
  • Question: Where can I buy testo 405i in Antigua and Barbuda?

    Answer: You can purchase the testo 405i anemometer from Ubuy, a reliable and trusted online retailer in Antigua and Barbuda. Ubuy offers a straightforward shopping experience, ensuring that you can easily find and acquire the testo 405i along with its advanced features. With a focus on customer service, Ubuy makes purchasing this high-quality instrument simple and efficient for professionals and enthusiasts alike.

Testo Anemometers Editorial Review

The testo 405i Hot-wire Anemometer is a wireless smart probe used for measuring air velocity, in-duct airflow and temperature. Based on the FAQ, it doesn't measure air mass directly and it doesn't compensate for pressure or temperature. It does display live CFM reading and features a trendline function to track changing temperature over time. The device has a telescoping probe that extends up to 16 inches, and it measures air velocity up to 6,000 FPM and air temperature from -4 to 140 degrees F. The device works well, instantly connecting to Bluetooth with continuous temperature and flow reading on the app. The magnet on the back mounts nicely to ductwork, and the Testo app is nice and straightforward to use. However, it has limited range with Bluetooth capability, and the temperature is 10 degrees F too high for some.

Customer Reviews & Ratings

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Pros

  • Wireless and compact
  • Instant connection to Bluetooth and continuous readings on the app
  • Telescoping probe that extends up to 16 inches
  • Measures air velocity up to 6,000 FPM and air temperature from -4 to 140 degrees F
  • Magnet on the back mounts nicely to ductwork
  • Testo app is simple and doesn't require an internet connection

Cons

  • Limited range with Bluetooth capability

Platform Trust & Buyer Confidence

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Mohammad
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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”

22-Jul-26 · via Trustpilot
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”

23-Jul-26 · via Trustpilot
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“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”

22 July 2026 · via Trustpilot
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”

23 July 2026 · via Trustpilot
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XCD 450

Order now and get it around Thursday, September 03

QTY:

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Our Top Logistics Partners
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  • dhl
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Features & Benefits

  • Measures air velocity, temperature, and volume flow
  • Telescopic shaft for easy access to measurements
  • Extremely lightweight and portable
  • Wireless Bluetooth connectivity with remote measurement readings
  • Smart Probe App for convenient instrument readings and data storage
  • Accurate and reliable measurements

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