🌬️ Measure smarter, not harder — airflow insights at your fingertips!
The Testo405i is a compact, handheld hot-wire anemometer designed for precise measurement of air velocity, temperature, and in-duct airflow. Featuring a 15-inch telescopic shaft for hard-to-access areas and Bluetooth 4.0 connectivity, it pairs with the Smart Probe App to provide real-time data visualization, storage, and reporting. Lightweight and battery-powered, it’s the ultimate tool for HVAC professionals seeking accuracy and convenience in one sleek device.
| Brand | Testo |
| Material | Plastic, Metal |
| Item dimensions L x W x H | 7.87 x 1.18 x 1.61 inches |
| Item Weight | 4.22 Ounces |
| Screen Size | 41 Millimeters |
| 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 |
| Voltage | 4.5 Volts |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement Accuracy | ±0.9 °F / ±0.5 °C |
| Special Features | Tough, accurate, and easy-to-use, Measurement data is transmitted to the convenient and powerful testo Smart Probes App in your smart device, Measures air velocity, volume flow, and temperature, Small dia. (Perform air duct leakage tests, Measures in-duct air flow and automatically calculates volume flow (enter duct dimensions simply) |
| Included Components | testo 405i hot-wire anemometer, 3 AAA batteries and certificate of conformity |
| Batteries Included? | Yes |
| Batteries Required? | No |
| Battery Cell Type | Alkaline |
C**O
Very easy to operate
Very useful
L**Z
Works Perfect
This works very well - exactly what I was looking for. A budget and user friendly way to spot-check our fume hoods to make sure they're still operating correctly between annual certifications.
J**T
Great tool for measuring low air volumes
I bought this to measure traditionally low air volumes coming out of long horizontal vents (honeycombs) of refrigerated cases in grocery stores. This, as a commissioning engineer, helps me qualify if there is any blockage (ice buildups) or if a fan is out. Using it via blue-tooth on my smartphone was very easy. What I didn't like was the temperature measurement response. I was hoping it would respond quickly, but it doesn't. Measuring a refrigerated airstream (~32dF) from an environment of 70dF took about 15 minutes, before I got a consistent reading. For my job, this is much too long. So I will use the tool to measure air volumes only.
J**.
Checking HVAC Air Flow
I use this to check the air flow in my HVAC system to determine when air filters need to be replaced. The bluetooth connection and the app work great. (Retired HVAC geek.🙂)
S**G
Wow. Works great and has lots of features. Well built
AC guy could not figure out why my air conditioner was icing up. With this meter I diagnosed low blower performance and he had to replace my defective blower under warranty. Fixed my air conditioner. On line videos show you how to use all the features. It works through you smart phone and is very accurate with multiple measurement methods.
D**S
Works great
Great product and works great
N**R
Fragile
Worked great with the Testo app, rather convenient! Got one use out it when it fell from my stepladder, hit the floor and the bulb wires separated. No external damage. Granted, DON'T drop them, but for the price, it should be able to take a little bounce from field use. Not worth sending it back to Testo, $25 upfront for handling before it is evaluated for an obvious bulb change (Testo does not sell a field replaceable bulb). Don't bang it or drop it. or maybe just buy one that's a little more robust or has a replacement bulb/wand for those times you do.
B**N
Easy to use anemometer
Anemometers are used to measure air speed. Many use little propellers that spin with airflow, but if you need to measure airflow inside of an enclosed space Testo 405i is what you need. Place the Testo measurement probe thru a small hole and air speed is simple. Very easy to use and good value for the design
Trustpilot
3 days ago
2 weeks ago
