
Handy Features The testo 550s is equipped with a particularly rugged housing (protection class IP54), a suspension hook, and a 2-way valve block with three connections. This enables convenient servicing and maintenance of air conditioning and refrigeration systems, as well as heat pumps.	Advanced Technology Thanks to the large, graphic display with the intuitive menu, as well as Bluetooth connection, HVAC/R technicians can control and view all measurements on the digital manifold or remotely via App. A simplified menu structure and guided measurements make the testo 550s a reliable partner.	Basic Kit Your ac manifold basic set includes the digital manifold, two wired temperature clamp probes, and a protective case. Optional probes for wireless measurements of vacuum and temperature are available separately or in extended Kits.


	Testo 570s Digital Manifold	Testo 550s Digital Manifold	Testo 557s Digital Manifold	Testo 550i Digital Manifold
Suitable for A3 and A2L Refrigerants	✓	-	-	-
Probe Connections	3 x 7/16" – UNF ; 1 x 5/8" – UNF; 2 x plug-in (NTC)	3 x 7/16" – UNF; 2 x plug-in (NTC)	3 x 7/16" – UNF; 1 x 5/8" – UNF; 2 x plug-in (NTC)	3 x 7/16" – UNF
Temperature Measuring Range	-58° to 302 °F / -50 to +150 °C	-58° to 302 °F / -50 to +150 °C	-58° to 302 °F / -50 to +150 °C	-
Pressure Measuring Range	-15 to 870 psi / -1 to 60 bar	-15 to 870 psi / -1 to 60 bar	-15 to 870 psi / -1 to 60 bar	-15 to 870 psi / -1 to 60 bar
Pressure Measuring Accuracy	±0.2 % Fs	±0.5 % Fs	±0.5 % Fs	±0.5 % Fs
Pressure Measurement Resolution	0.14 psi / 0.01 bar	0.14 psi / 0.01 bar	0.14 psi / 0.01 bar	0.14 psi / 0.01 bar
Overload rel. (low pressure)	943 psi / 65 bar	-	-	-
Overload rel. (high pressure)	943 psi / 65 bar	940 psi	940 psi	943 psi / 65 bar
Battery Life	With built-in rechargeable battery:; ≥220 h without Bluetooth, without illumination; ≥120 h with Bluetooth and illumination; With 3 AA batteries:; ≥145 h without Bluetooth, without illumination; ≥75 h with Bluetooth and illumination	250 h with no illumination, no Bluetooth; 100 h with illumination and Bluetooth	250 h with no illumination, no Bluetooth; 100 h with illumination and Bluetooth	130 h
Battery Type	Built-in rechargeable battery: LI batttery 18650; Replaceable battery: 3 alkaline batteries AA	4 x AA batteries	4 x AA batteries	3 x AAA

Home Industrial & Scientific Test, Measure & Inspect Testo 550s AC Manifold Gauge Set – Manifold Gauges Hvac and Refrigeration – Incl. 2 Wired Temperature Clamp Probes – AC Recharge Kit with superheat, subcooling with Bluetooth

Testo 550s AC Manifold Gauge Set – Manifold Gauges Hvac and Refrigeration – Incl. 2 Wired Temperature Clamp Probes – AC Recharge Kit with superheat, subcooling with Bluetooth

Brand	Testo
Material	Housing Material: ABS/PA/TPE
Item Dimensions LxWxH	8.3 x 4.8 x 2.4 inches
Item Weight	0.01 Ounces

ACCURATE; The manifold gauge set offers extremely precise readings of temperature and pressure on air conditioning systems, refrigeration, as well as heat pumps
INTERFACE; Equipped with a large backlit display and intuitive menu navigation, the AC manifold is particularly easy to use, even in low light conditions, which provides constant access to all desired functions
RELIABLE; The ac manifold gauge set is designed to meet the high industry standard. Completed with a sturdy housing (protection class IP54), the instrument delivers dependable data even in difficult condition
PROBES; Obtain accurate measurements of temperature, pressure, or vacuum with the hvac manifold gauge set. The kit includes 2 wired temperature probes, making system analysis and optimization quick and easy
FEATURES; The testo gauges hvac supports most common refrigerant types, as well as A3 refrigerants. Combined with the testo smart app, the gauge produces automatic calculations of superheat and subcooling

Product Description

testo 550s Set (includes digital manifold and 2 wired clamp probes) – Smart measurement device for high/low side pressures and temperatures

The testo 550s kit is the ideal set of products for highly reliable and flexible measurement and documentation. Thanks to its smart Bluetooth integration, data can be stored and evaluated reliably and efficiently. The 2 clamp probes facilitate rapid evaporator and condenser temperature measurements, thus ensuring that the refrigeration system is running at maximum efficiency.

Technical Data:

testo 550s:
Temperature measuring range: -58° to +302°F / - 50° to +150°C
Temperature measurement accuracy: +-0.9 °F / +-0.5 °C
Pressure measuring range: -15 to 870 psi / -1 to 60 bar
Pressure measurement accuracy: +-0.5 % of full-scale value
Pressure overload relay: 943 psi / 65 bar
Vacuum measuring range: -15 to 0 psi / -1 to 0 bar
Probe connection type: 2 x plug-in (NTC)

Clamp probes:
Temperature measuring range: -40 zu 257 °F / -40 to +125 °C
Temperature measurement accuracy: +-1.8 °F (-4° to 185 °F) / +-1 °C (-20 to +85 °C)
Weight: 3.74 oz. / 106 g
Dimensions: 4.7 x 3.0 x 1.3 in. / 120 x 77 x 32 mm

System Requirements: requires iOS 11 or higher; requires Android 6 or higher; requires mobile end device with Bluetooth 4.0

Scope of delivery:
1 x testo 550s manifold, batteries, 2 x testo wired temperature clamp probes, 1 x Protective case, Banderole, instruction manuals and calibration protocols