testo 550i – App-controlled digital manifold with Bluetooth and 2-way valve block

From the measurement itself through to the documentation – thanks to the app, you can have your everyday servicing and maintenance work on your smartphone or tablet. The testo 550i digital manifold is equipped with Bluetooth, 2-way valve block and a sturdy hook, and can be fully controlled via app and smartphone or tablet – for flexible, fast measurements and digital documentation.

testo 550i – App-controlled digital manifold with Bluetooth and 2-way valve block

For carrying out exceptionally fast, easy measurements on refrigeration and air conditioning systems and heat pumps
testo Smart App: Control your servicing and maintenance tasks completely via app and smartphone or tablet, enjoy clearly presented results and digital documentation, set your own favourites, and always have the latest refrigerants
Maximum reliability and convenient handling in environments that are difficult to access thanks to an exceptionally compact, extremely robust housing with IP54 protection class
Maximum flexibility for working wirelessly: Bluetooth probes for temperature, pressure and humidity automatically connect to the measuring instrument via the testo Smart App
Continuously high performance in all conditions: You can depend on this manifold from Testo – it combines proven Testo quality with excellent robustness

Pressure measurement

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

General technical data

General technical data	Weight 595 g
	Dimensions 77 x 109 x 63 mm
	Operating temperature -10 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 130 h
	Battery type 3 AAA micro batteries
	Data transfer Bluetooth®
	Radio range 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; R411A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22
	Refrigerant A2L / A3 compatibel
	Storage temperature -20 to +60 °C
* when not connected via Bluetooth

testo 550i digital 2-way manifold including batteries (3 x AAA), calibration protocol and instruction manual.

Testo has put together the practical testo 550i Smart Kit for you – so you’ll be optimally equipped to tackle your measuring tasks right away.

Humidity probes

: 0560 2605 02

testo 605i - Thermohygrometer operated via smartphone

Measurement of air humidity and temperature in rooms and ducts

Pressure probes

: 0564 2552

testo 552i - App-controlled wireless vacuum probe

Identify vacuum quickly and easily by means of the graphical display in the App or on the digital manifold screen

Temperature probes

: 0560 2115 02

testo 115i - Clamp thermometer operated via smartphone

Convenient temperature measurement on refrigeration, air conditioning and heating systems – thanks to wireless connection to your smartphone or tablet

: 0563 4915

testo 915i - Thermometer with flexible probe and smartphone operation

Smart Probe for wireless temperature measurement in a wide range of applications, thanks to a large selection of probes and compatibility with standard type K thermocouple probes

: 0613 4611

Temperature probe with Velcro (NTC)

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

Sets

: 0564 3550

testo 550i Smart Kit - App-controlled digital manifold with wireless clamp temperature probes (NTC)

All activities, from measurement through to documentation, using the App on your Smartphone

Refrigeration systems, air conditioning systems, heat pumps

Determination of high and low pressure, automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling. All the results can be read simultaneously on one display (in conjunction with the appropriate Testo Smart Probes)
Tightness test: Recording and analysis of the pressure curve
Automatic calculation of the target superheat (in conjunction with the testo Smart App and the appropriate Testo Smart Probes, e.g. testo 115i and testo 605i)
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)

Data sheet testo 550i(575.02 KB)

Accessories

: 0564 2560

testo 560i kit - Digital refrigerant scale and intelligent valve with Bluetooth^®

Automatic and precise refrigerant charging according to target superheat, subcooling and weight thanks to intelligent valve

: 0564 1560

testo 560i - Digital refrigerant scale with Bluetooth^®

Wireless measurement of refrigerant weight and operation with Testo manifolds and testo Smart App via Bluetooth

: 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

: 0501 4000

testo DataControl v30.2.4 - PC software

PC software for the readout, analysis and archiving of customer and measurement data

: 0564 1001

Magnetic strap - for digital manifolds

Strong magnet and sturdy strap

: 0516 2012

Transport case - for digital manifolds

Robust design for daily use

testo 550i - App-controlled digital manifold with Bluetooth and 2-way valve block

testo 550i - App-controlled digital manifold with Bluetooth and 2-way valve block

testo 550i – App-controlled digital manifold with Bluetooth and 2-way valve block

Pressure measurement

Pressure measurement

General technical data

General technical data

Humidity probes

Pressure probes

Temperature probes

Sets

Refrigeration systems, air conditioning systems, heat pumps

Accessories