Testo 557s – pressure gauge with 4-way valve block
0564 5571
Easier and more flexible measurement and documentation
The digital pressure gauge testo 557s with Bluetooth and 4-way valve block gives you all the tools you need for commissioning, servicing and maintaining refrigeration units, air conditioning systems and heat pumps.
Fast and precise measurements
• Perfect for refrigeration systems, air conditioning and heat pumps
• Large graphic display for easy and clear reading
• Ready-made measurement programs guide you step by step and can automatically calculate important system parameters such as overheating, pressure drop and emptying
Maximum flexibility and user-friendliness
• Bluetooth sensors for temperature, pressure and humidity are automatically connected to the pressure gauge
• The testo Smart app enables digital documentation directly on site, setting of your own favorites and automatic updates with the latest refrigerants
Reliable and robust
• The testo 557s delivers consistently high performance under all conditions
• Combines proven Testo quality with a very robust design, ready for tough working environments
