TESTO 557 Digital manifold set

Are you primarily entrusted with the commissioning or maintenance of refrigeration systems or heat pumps? If so, the testo 557 is the ideal digital manifold for you: like the testo 550, this digital manifold replaces multiple tools in the refrigeration industry and can be connected to a practical app. As well as the features of the testo 550 manifold, the testo 557 offers a high-precision external Pirani gauge for vacuum measurement: this enables the quick, safe evacuation of refrigeration systems and heat pumps.

TESTO 557 Digital manifold set Specifications:

Temperature :

• Measuring range : -50 to +150 °C
• Accuracy : ±0.5 °C
• Resolution : 0.1 °C
• Probe connection : 2 x Plug-in (NTC)

Pressure measurement :

• Measuring range : -1 to 60 bar
• Accuracy : ±0.5 % fs
• Resolution : Resolution
• Probe connection : 3 x 7/16″ – UNF + 1 x 5/8” – UNF
• Overload rel. (high pressure) : 65 bar