Overview of Primary Product

Measures high side / low side pressures and temperatures
Simultaneous, real-time super heat and sub-cooling
External vacuum probe for faster and more reliable
evacuation of the system
App integration via Bluetooth for fast and convenient
remote monitoring and reporting via email
Refrigerant updates to the instrument via App
60 on board refrigerant profiles
4-way valve block with 1/4 in. and 3/8 in. ports
5 year warranty with registration
testo 557 – with external vacuum
and Bluetooth
The new testo 557 opens up new possibilities
for efficient analysis and documentation –
with Bluetooth / App integration. The wireless
connection allows users to read data on a
Smartphone or Tablet, quickly and conveniently.
Using the App, you can e-mail measurement
reports directly from the customer job site.
The App also allows you to update the stored
refrigerants.
The 557 now has a external vacuum probe for
faster and more reliable evacuations and is
suitable for all refrigeration systems or heat
pumps. This compact manifold has a 4-way valve
block, large backlit display and sight glass. Two
NTC thermistor clamp probes provide superior
accuracy of simultaneous, real-time superheat and
sub-cooling readings.
www.testo.com
micron
Digital manifold
bar
Leak
Test
Super
heat
Sub-
cooling
psi/
°F/°C