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testo 405i – Anemometer handheld for air velocity, in-duct airflow, and temperature – CFM meter with Bluetooth and App operation

testo 405i – Anemometer handheld for air velocity, in-duct airflow, and temperature – CFM meter with Bluetooth and App operation

Q: Can you use it to measure air mass? Like kg / hour? And does it compensate for air temperature and air pressure?

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?

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?

There's a trendline function that can keep track of changing temp over time.

Product ID: 25479456

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Details

Brand
Testo
Material
Metal Plastic
Item dimensions L x W x H
7.87 x 1.18 x
Item Weight
4.22 Ounces
Voltage
4.5 Volts

📏15" telescopic shaft for hard-to-reach spots

📶Bluetooth 4.0 wireless connectivity

🌡️Accurate temp range -20 to +60 °C

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Description

🌬️ Measure Smarter, Work Faster — The testo 405i Has Your Airflow Covered!

EXTEND YOUR REACH - Telescopic, hinged shaft extends up to 15 inches for effortless access to tight ducts and confined HVAC spaces.
BUILT FOR THE FIELD - Rugged housing and included calibration certificate ensure reliability and durability for professional-grade HVAC servicing.
LIGHTWEIGHT POWERHOUSE - Weighing just 4.2 oz, this compact tool fits in your hand and your workflow without weighing you down.
PRECISION IN EVERY BREATH - Hot-wire sensor delivers ultra-accurate air velocity and temperature readings with ±0.5 °C and advanced velocity accuracy.
SEAMLESS SMART INTEGRATION - Bluetooth 4.0 syncs instantly with the testo Smart Probe App for remote monitoring, data logging, and custom reporting.

The testo 405i is a compact, Bluetooth-enabled hot-wire anemometer designed for precise measurement of air velocity, temperature, and volume flow in HVAC systems. Featuring a 15-inch extendable shaft for hard-to-access ducts, it pairs with the Smart Probe App for remote data visualization and reporting. Lightweight yet rugged, it offers professional-grade accuracy and convenience for millennial managers who demand efficiency and smart tech integration in their toolkit.

Specifications

Brand	Testo
Material	Metal, Plastic
Item dimensions L x W x H	7.87 x 1.18 x 1.61 inches
Item Weight	4.22 Ounces
Voltage	4.5 Volts
Global Trade Identification Number	04029547014260
Manufacturer	Testo
Part Number	0560 1405
Item Weight	4.2 ounces
Product Dimensions	7.87 x 1.18 x 1.61 inches
Item model number	0560 1405 01
Batteries	3 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Size	small
Color	Black/Orange
Style	Wireless Smart Probe
Thickness	Not applicable Inches
Item Package Quantity	1
Number Of Pieces	1
Measurement Accuracy	±0.9 °F / ±0.5 °C
Special Features	Measurement data is transmitted to the convenient and powerful testo Smart Probes App in your smart device, Measures air velocity, volume flow, and temperature, Measures in-duct air flow and automatically calculates volume flow (enter duct dimensions simply), Small dia. (Perform air duct leakage tests, Tough, accurate, and easy-to-use
Included Components	testo 405i hot-wire anemometer, 3 AAA batteries and certificate of conformity
Batteries Included?	Yes
Batteries Required?	No
Battery Cell Type	Alkaline

Have a Question? See What Others Asked

Can you use it to measure air mass? Like kg / hour? And does it compensate for air temperature and air pressure?

Can it calculate or convert to Feet per minute?

Can you use it to measure the delta?

Does this device show a live CFM reading?

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