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.

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)

Can you use it to measure the delta?

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

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– testo 405i Hot-wire Anemometer I Wireless Smart Probe for air velocity, in-duct airflow and temperature

Product ID: 386510290

Details

Brand
Testo
Item dimensions L x W x H
20 x 3 x 4.1
Item weight
0.23 Kilograms
Material
Acrylonitrile
Style
Wireless Smart

📏Telescopic shaft extends to 15" for hard-to-reach spots

📶Bluetooth 4.0 wireless connectivity for remote readings

🌡️Accurate temp range -20 to 60°C with ±0.5°C precision

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€ 284.59

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌬️ Measure smarter, not harder — the testo 405i keeps you ahead of the airflow game!

REACH THE UNREACHABLE - Extendable 15" telescopic shaft lets you effortlessly measure airflow in tight ducts and confined spaces.
LIGHTWEIGHT DURABILITY - Compact and rugged ABS housing weighs just 4.2 oz, built to withstand demanding HVAC service environments.
PRECISION IN EVERY BREEZE - Hot-wire sensor delivers reliable air velocity and temperature measurements with industry-grade accuracy.
SEAMLESS WIRELESS WORKFLOW - Bluetooth 4.0 integration pairs instantly with your smartphone or tablet for real-time remote monitoring.
SMART DATA SMARTER DECISIONS - Use the intuitive Smart Probe App to visualize data, automate calculations, and generate professional reports on the go.

The testo 405i is a wireless hot-wire anemometer designed for precise measurement of air velocity, temperature, and volume flow in HVAC systems. Featuring a telescopic shaft extendable up to 15 inches, Bluetooth 4.0 connectivity, and compatibility with the Smart Probe App, it enables remote, accurate readings and streamlined reporting. Lightweight and rugged, it’s engineered for professional technicians seeking efficiency and reliability in challenging environments.

Specifications

ASIN	B018VO5GI2
Brand Name	Testo
Customer Reviews	4.5 4.5 out of 5 stars (599)
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	04029547014260
Included Components	testo 405i hot-wire anemometer, 3 AAA batteries and certificate of conformity
Item Dimensions	20 x 3 x 4.1 centimeters
Item Weight	0.23 Kilograms
Manufacturer	Testo
Material Type	Acrylonitrile Butadiene Styrene
Measurement Accuracy	±0.9 °F / ±0.5 °C
Model	0560 1405 01
Part Number	0560 1405
Style Name	Wireless Smart Probe
Unit Count	1 Count

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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