Professional Measurement Technology
With meters, solutions, and services from Testo, you can be sure that you are making the right decision every time.
Faster, simpler, more sustainable: with the smart networked HVAC/R world of Testo.
Leaf your old analyzer behind and FALL into our Promotion!
Purchase a testo 310 II or 300 Combustion Analyzer Kit and via mail-in rebate, receive a complimentary testo 510i Smart Probe* and be entered to win the testo Professional Technicians Kit valued at $5,000!**
Score BIG with the BEST Sensors in the Game!
Purchase any new testo 340 or testo 350 Emissions Analyzer between September 1st, 2024 and December 31st, 2024, and qualify for a FREE Sensor upgrade!*
New Year,
New Web Shop!
Free Shipping on any testo Web Shop purchase!
(Offer valid in the Continental US only)
Professional Measurement Technology
With meters, solutions, and services from Testo, you can be sure that you are making the right decision every time.
Professional Measurement Technology
With meters, solutions, and services from Testo, you can be sure that you are making the right decision every time.
Professional Measurement Technology
With meters, solutions, and services from Testo, you can be sure that you are making the right decision every time.
Faster, simpler, more sustainable: with the smart networked HVAC/R world of Testo.
No matter how demanding your project may be, we can offer you the right solution.
One app for all measurements
The testo Smart app guides you quickly and easily through measurements on refrigeration, air conditioning and heating systems.
New Features:
PRO measuring programs to increase the efficiency of your applications
Multifunctional
Compatible with all Bluetooth-enabled Testo measuring devices.
Efficient
Reports can be sent directly via email.
Fast
All measured values at a glance.
Simple
Intuitive menus
Clever
Free to download, free to use (Base App)
NEW
PRO Measurement Programs (subscription required)
Our service
This is Testo!
In it's 60 year history, Testo SE & Co. KGaA has written many large and small success stories.