testo 550s Basic Kit - Smart digital manifold with fixed cable clamp temperature probes
- All results at a glance thanks to the large graphic display
- Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
- Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth® connection, testo Smart App for documentation and lots more
- In the kit: testo 550s smart digital manifold with Bluetooth and 2-way valve block, 2 x clamp temperature probes (fixed cable, NTC), case
Internal Reference :
0564 5501Description
With the testo 550s Basic Kit, you’ll be ready to start your measurements in the commissioning, servicing, and maintenance of refrigeration systems, air conditioning systems, and heat pumps straight away. This comprehensive digital manifold gauge set features the testo digital manifold with Bluetooth and a 2-way valve block, designed to replace traditional analog tools with high-precision technology.
The kit includes two fixed cable clamp temperature probes (NTC) and a robust transport case. As a versatile digital refrigerant manifold, the testo 550s simplifies your workflow by providing fast, accurate readings on a large display. Whether you are looking for reliable digital hvac manifold gauges for daily use or a complete digital manifold gauge solution for complex systems, this kit delivers professional results. Additional Bluetooth probes, such as those for wireless measurements of temperature and vacuum, are available separately to further enhance your toolkit.
Delivery Scope
- testo 550s digital 2-way manifold including batteries (4 x AA) and calibration protocol
- Clamp temperature probe kit (includes 2 x clamp probes NTC)
- Transport case
- testo Smart App (free download)
- Instruction manuals
Frequently Asked Questions
Yes. The testo digital manifold features integrated Bluetooth connectivity that pairs seamlessly with the free testo Smart App. This allows you to monitor measurements remotely on your smartphone, create digital reports, and always have access to the most up-to-date list of over 90 refrigerants.
Yes, the testo 550s is designed to be future-proof and is fully compatible with A2L and A3 refrigerants, as well as standard refrigerants like R410A and R22. This makes it a reliable digital manifold gauge for modern, environmentally friendly systems.
This digital manifold gauge set is built for long-term field use. It offers up to 250 hours of battery life when used without Bluetooth or illumination, and approximately 100 hours when both Bluetooth and the display backlight are active.
While the testo 550s can display vacuum readings during the evacuation process, for high-precision vacuum measurements, Testo recommends using an external Bluetooth vacuum probe (like the testo 552i), which can connect wirelessly to the manifold.
Absolutely. These digital hvac manifold gauges are housed in a rugged casing with an IP54 protection class, making them resistant to dust and water splashes. This ensures the device remains reliable even in harsh outdoor or industrial environments.
| Parameters | |
|---|---|
| Measuring range | -50 to +150 °C |
| Accuracy | ±0.5 °C |
| Resolution | 0.1 °C |
| General technical data | |
| Weight | 826 g |
| Operating temperature | -20 to +50 °C |
| Protection class | IP54 |
| Battery Life | 250 h with no illumination, no Bluetooth<sup>®</sup>; 100 h with illumination and Bluetooth<sup>®</sup> |
| Battery type | 4 x type AA batteries |
| Refrigerants in instrument | R114; R12; R123; R1233zd; R1234yf; R1234ze; R124; R125; R13; R134a; R22; R23; R290; R32; R401A; R401B; R402A; R402B; R404A; R407A; R407C; R407F; R407H; R408A; R409A; R410A; R414B; R416A; R420A; R421A; R421B; R422B; R422C; R422D; R424A; R427A; R434A; R437A; R438A; R442A; R444B; R448A; R449A; R450A; R452A; R452B; R453a; R454A; R454B; R454C; R455A; R458A; R500; R502; R503; R507; R513A; R600a; R718 (H₂O); R744 (CO₂) |
| Refrigerants update via App | R11; FX80; I12A; R1150; R1270; R13B1; R14; R142B; R152A; R161; R170; R227; R236fa; R245fa; R401C; R406A; R407B; R407D; R41; R411A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22 |
| Pressure Measurement | |
| Probe connection | 2 x plug-in (NTC), 3 x 7/16" – UNF |
| Measuring range pressure | -1 to 60 bar |
| Accuracy pressure | ±0.5 % fs |
| Resolution pressure | 0.01 bar |
| Overload rel. (high pressure) | +65 bar |