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The Testo 550s AC Manifold Gauge Set is a professional-grade HVAC diagnostic tool offering precise temperature (-58° to 302°F) and pressure (-15 to 870 psi) measurements with ±0.5% accuracy. Featuring Bluetooth connectivity, it wirelessly transmits data to the Testo Smart App for seamless analysis and reporting. Compatible with a wide range of refrigerants including A2L types, it comes equipped with two wireless temperature clamp probes and a vacuum probe, all housed in a rugged, IP54-rated ABS casing designed for durability and portability on demanding job sites.




| ASIN | B08TY6JH9M |
| Best Sellers Rank | 392,692 in Automotive ( See Top 100 in Automotive ) 167 in Manifold Gauges |
| Brand | Testo |
| Customer Reviews | 4.6 out of 5 stars 495 Reviews |
| Included Components | Instrument, Temp Probes (2x), Manual, Batteries, Case |
| Item Dimensions | 21.1 x 12.2 x 6.1 centimetres |
| Item Weight | 0.01 Ounces |
| Item dimensions L x W x H | 21.1 x 12.2 x 6.1 centimetres |
| Item height | 2.4 inches |
| Item weight | 0.01 Ounces |
| Manufacturer | Testo SE & Co. KGaA |
| Material | Housing Material: ABS/PA/TPE |
M**.
Me pone triste
El producto está perfecto, es una lástima que el que me mandaron trae un fallo en la pantalla, deben de poner más verificaciones de calidad o mejor protección a los producto para que no sufran estos daños. =(, me han hecho la devolución y lo pedí de nuevo me a llegado uno nuevo sellado y sin problema, gracias Amazon 😍
R**P
Work great
The unit is smaller than I thought looking at the pic. Than does not take away from the gauges. They have worked great. I have no complaints. They hook up to the temp probes and vacuum gauge with out any problem. I have had them on many all day jobs on some large systems and the battery indicator still says full.
T**7
Testo 550s AC Manifold Gauge Set for Professional Technicians
The Testo 550s AC Manifold Gauge Set is a reliable and essential tool for HVAC and refrigeration professionals. With its accurate readings, wired temperature probes, and comprehensive features, this gauge set ensures precise monitoring and analysis of AC systems for optimal performance. The standout feature of the Testo 550s AC Manifold Gauge Set is its accuracy. The gauges are engineered to provide precise measurements of pressure, temperature, and superheat/subcooling, allowing technicians to make informed decisions and diagnose issues effectively. The high-quality construction and advanced sensor technology ensure reliable and repeatable readings, ensuring confidence in the results. This gauge set includes two wired temperature probes, which are invaluable for obtaining accurate temperature measurements in various parts of the AC system. The probes can be easily attached to different components such as condenser units, evaporators, or refrigerant lines, providing valuable insights into the system's operation. With this information, technicians can assess system performance, identify potential issues, and optimize the overall efficiency of the AC or refrigeration system. The Testo 550s AC Manifold Gauge Set is designed with convenience and usability in mind. The gauges feature a user-friendly interface with a large backlit display for easy reading even in low-light conditions. The intuitive menu navigation allows technicians to quickly access the desired functions and make adjustments effortlessly. The rugged build and ergonomic design ensure durability and comfort during extended use. Additionally, this gauge set offers comprehensive features that cater to the specific needs of HVAC and refrigeration professionals. It supports multiple refrigerant types, including R-410A, R-22, R-404A, and more, ensuring versatility for a wide range of applications. The set also features automatic calculations of superheat and subcooling, enabling efficient troubleshooting and system optimization. Testo is known for its commitment to quality and innovation. The Testo 550s AC Manifold Gauge Set upholds this reputation by meeting the highest industry standards. It undergoes rigorous testing and calibration to deliver accurate and reliable performance, making it a trusted tool for professional technicians. In conclusion, the Testo 550s AC Manifold Gauge Set is an indispensable tool for HVAC and refrigeration professionals. With its accurate readings, wired temperature probes, and comprehensive features, this gauge set enables precise monitoring and analysis of AC systems. Enhance your diagnostic capabilities, optimize system performance, and deliver exceptional service with the reliable and efficient Testo 550s AC Manifold Gauge Set.
C**E
Good stuff
Excellent
D**E
Testo 550 kit
Product as described
Trustpilot
2 days ago
2 months ago