Electronic pressure gauge TESTO 550s SMART

The electronic manifold testo 550s Smart Kit is an indispensable tool for technicians working with refrigeration, air conditioning systems, and heat pumps. Its compact and durable design, equipped with a 2-way valve block, ensures convenient and precise measurements. The large graphic display provides excellent readability of results, while the built-in Bluetooth module enables wireless operation and measurement analysis via the testo Smart App. This allows for quick documentation and the ability to send reports directly from the job site.

The testo 550s Smart Kit supports a wide range of refrigerants, which can be updated through the app. A robust IP54-rated housing ensures resistance to harsh working conditions. The device also allows for the connection of an optional testo 552i vacuum probe, enhancing its functionality for system diagnostics and maintenance. Thanks to innovative solutions such as wireless clamp thermometers testo 115i, the technician’s work becomes even more efficient and comfortable.

Built-in refrigerants:
R114, R123, R1233zd, R1234yf (displayed as T8 in testo 557), E1234ZE, R124, R125, R13, R134a, R22, R23, R290, R32, R401B, R402B, R404A, R406A, R407A, R407C, R407F, R407H, R409A, R410A, R411A, R416A, R417A, R421A, R421B, R422A, R422B, R422C, R424A, R434A, R437A, R438A, R502, R442A, R444B, R448A, R449A, R450A, R452A, R452B, R453A, R454A, R454B, R454C, R455A, R458A, R500, R503, R507, R513A, R600a, R718 (H₂O), R744 (CO₂).

Refrigerants updatable via the mobile app:
R11, FX80, I12A, R1150, R1270, R13B1, R14, R142B, R152A, R161, R170, R227, R236fa, R245fa, R401C, R407A, R407B, R5407D, R41, Ra11A, R412A, R414B, R420A, R417B, R417C, R422B, R426A, R508A, R508B, R600a, RIS89, SP22.

Set includes:

- Electronic manifold (digital gauge) Testo 550s
- 2 x wireless clamp thermometer Testo 115i (Bluetooth, NTC)
- Batteries (4 x AA)
- Transport case
- Calibration protocol
- Free download of the Testo Smart App