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Measurement solutions for refrigeration technology
Your job: effortless.
Smart & simple refrigeration measurements – with perfectly networked instruments.
Fully automatic
Fully networked
Fully automatic
Fully networked
Networked systems that work together seamlessly make your work on refrigeration, air conditioning and heat pump systems much easier and more efficient. With just one click, all measurement data can be viewed centrally in the manifold or the testo Smart App. This also greatly simplifies the documentation process, which can be carried out directly on site.
testo 558s digital manifold
TRMS clamp meter testo 770-3
Smart Probes
testo 565i Smart Vacuum Pump
Refrigerant scales
testo 560i
The new testo 558s digital manifold
Ultimate Control, Maximum Precision.
Intuitive App Feel  – with touchscreen and clear visualisation of readings.
Hybrid Charging System  – with non-rechargeable batteries & Li-ion battery (charged via USB-C).
Maximum Safety  – with A3 & A2L compatibility.
Data Logging  – with readings recorded up to 30min as trend curves. Optionally extendable up to 72h.
Extreme Precision  – with 0.25% full-scale accuracy.
Ready to go immediately – with the Testo kits
Overview of the main applications
Refrigeration knowledge in three modules
Download the exclusive practical guide for free now.
Understanding refrigeration systems
Evaluating refrigerants
Thermodynamics
Main components of the compression refrigeration circuit
Subcooling / Superheating
And much more ...
Delta T Refrigeration
We caught up with @thecoolinggirl to see what she thought of the NEW testo 558s digital manifold. Check out the video now!
The whole world.
In one App.
Easier, faster, smarter. The testo Smart App brings all the tools and measurements together – and the documentation can also be conveniently managed using a smartphone or tablet. Experience end-to-end connectivity, wireless measurements and all your data at a glance.
Display graphical measured value curve
Intelligent error analysis
Save measurement data
E-mail dispatch of the report
Configure your measuring instrument