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testo 550s Basic Kit

0564 5501 01

testo 550s Basic Kit - Smart digital manifold with wired clamp temperature probes

0564 5501 01

testo 550s Basic Kit - Smart digital manifold with wired clamp temperature probes

FREE VETO MB3 Bag with purchase, now through July 31st, 2026.
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With this kit, you’ll be ready to start your measurements in the commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps straight away: You will get the testo 550s smart digital manifold with Bluetooth and 2-way valve block, two wired clamp temperature probes (NTC) and a rugged transport case. Additional Bluetooth probes, e.g. for wireless measurements of temperature and vacuum, are available separately.

*A2L Refrigerant Compliant*

All results at a glance thanks to the large graphic display
Exceptionally compact and reliable thanks to the easy-to-handle, rugged 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 (wired, NTC), case

: 0564 5500

testo 550s - Smart digital manifold with Bluetooth and 2-way valve block

All results at a glance thanks to the large graphic display

: 0613 5507

Clamp temperature probe kit (fixed cable, NTC) - For measurements on pipes (Ø 6-35 mm)

High-precision NTC temperature sensor

: 0501 5001

testo Smart App

All in one: One app for all Bluetooth^®-enabled Testo measuring instruments for air conditioning/refrigeration systems and heat pumps

testo 550s - Smart digital manifold with Bluetooth and 2-way valve block

0564 5500

Temperature

Temperature	Measuring range -58° to 302 °F / -50 to +150 °C
	Accuracy ±0.9 °F / ±0.5 °C
	Resolution 0.1 °F / 0.1 °C
	Probe connection 2 x plug-in (NTC)

Pressure measurement

Pressure measurement	Measuring range -15 to 870 psi / -1 to 60 bar
	Accuracy ±0.5 % Fs
	Resolution 0.14 psi / 0.01 bar
	Probe connection 3 x 7/16" – UNF
	Overload rel. (high pressure) 943 psi / 65 bar

General technical data

General technical data	Weight 29.14 oz. / 826 g
	Dimensions 8.27 x 4.76 x 2.36 in. / 210 x 121 x 60 mm (LxWxH)
	Operating temperature -4° to 122 °F / -20 to +50 °C
	Protection class IP54
	System requirements requires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
	Product colour Black
	Auto-off 10 min*
	Battery life 250 h with no illumination, no Bluetooth<sup>®</sup>; 100 h with illumination and Bluetooth<sup>®</sup>
	Battery type 4 x AA batteries
	Data transfer Bluetooth®
	Radio range 492.12 ft. / 150 m
	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; Ra11A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22
	Refrigerant A2L / A3 compatibel
	Storage temperature -4° to 140 °F / -20 to +60 °C
* when not connected via Bluetooth

Clamp temperature probe kit (fixed cable, NTC) - For measurements on pipes (Ø 6-35 mm)

0613 5507

Temperature - NTC

Temperature - NTC	Measuring range -40.0° to 257.0 °F / -40 to +125 °C
Temperature - NTC	Accuracy ±2 °F (-4°to +185 °F) / ±1 °C (-20 to +85 °C)

General technical data

General technical data	Weight 2.9 oz. / 81 g
	Dimensions 4.72 x 3.03 x 1.26 in. / 120 x 77 x 32 mm
	Product colour Black

testo Smart App

0501 5001

General technical data

General technical data	System requirements requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.0

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

Temperature probes

: 0613 1712

Air Probe - NTC

Efficient, robust NTC air probe

$ 129.00

: 0613 5507

Clamp temperature probe kit (fixed cable, NTC) - For measurements on pipes (Ø 6-35 mm)

High-precision NTC temperature sensor

$ 107.00

: 0613 5506

Clamp probe (NTC) - with 5 m cable length

Precision NTC temperature sensor

$ 78.20

: 0613 4611

Velcro Pipe Wrap Probe (NTC) - Pipe probe

With Velcro: makes it easy to attach the surface probe to pipes with a pipe diameter of up to 75 mm

$ 127.50

: 0613 5605

Spring Clamp Probe (NTC) - For pipes from ¼” to 2 1/2”

Testo NTC Spring Clamp Probes will allow you to properly measure Evaporator and Condensor temperatures in real time using your Testo Digital Manifold. Using the spring clamp probes will also allow the manifold to calculate Superheat and Subcool values, ensuring that they are at a correct, optimized level, and the refrigeration system is running at maximum efficiency

$ 262.65

Waterproof NTC surface probe for flat surfaces

: 0613 1912

Waterproof surface probe for flat surfaces - NTC

Waterproof surface probe for flat surfaces

$ 145.00

Sets

: 0564 5501 01

testo 550s Basic Kit - Smart digital manifold with wired clamp temperature probes

All results at a glance thanks to the large graphic display

$ 499.00

: 0564 5502 01

testo 550s Smart Kit - Smart digital manifold with wireless clamp temperature probes

All results at a glance thanks to the large graphic display

$ 677.00

: 0564 5504 01

testo 550s Smart Kit - Smart digital manifold with wireless clamp temperature probes and wireless vacuum probe

All results at a glance thanks to the large graphic display

$ 800.00

: 0564 5505 01

testo 550s Smart Kit - Smart digital manifold with wireless vacuum probe, wireless clamp temperature probes, and 3 hoses

All results at a glance thanks to the large graphic display

$ 945.00

Refrigeration systems, air conditioning systems, heat pumps, ductless, single zone, multi zone, mini split systems

Determination of high and low pressure, automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling. All results can be read simultaneously on one screen
Tightness test: Recording and analysis of the pressure curve
Automatic calculation of the target superheat (in conjunction with the appropriate measuring instrument, e.g. Testo Smart Probe)
Measure vacuum: Graphic progression display of the measurement with indication of the start and differential value
Evacuation: Graphic progression display of the measurement with indication of the start and differential value (in conjunction with the appropriate Testo Smart Probe, e.g. testo 552i vacuum probe)