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Home
testo 550i - Heat pump kit (with sightglass)

testo 550i - Heat pump kit

300564 3550 03

testo 550i - Heat pump kit

300564 3550 03

Compact design designed for control via smartphone/tablet

IP54 protection for outdoor use

Suitable for use on monobloc or split heat pump systems

Supplied with testo 770-3 clamp meter for compressor current testing

Simple digital documentation and 'on-site' reporting via bluetooth connection to free Testo Smart App.

The kit for app-controlled, wireless measurements and digital documentation on your smartphone. You will get the testo 550i app-controlled digital manifold with Bluetooth (with sightglass), 2-way valve block and sturdy hook. For wireless temperature measurement on either flow/return pipework or for superheat/subcooling calculation, the 2 x testo 115i Smart Probes supplied allow simple and effective measurement, and the testo 770-3 clampmeter can be used for compressor current measurenet and other electrical testing. You’ll be ideally equipped to carry out your measuring tasks on either monobloc or split system Heat Pumps ,and the kit can also be used for general refrigeration and air-conditining service applications as well.

testo 550i digital 2-way manifold (with sightglass) including batteries (3 x AAA) and calibration protocol for use with testo Smart App (free download).
2 x testo 115i bluetooth pipe clamp thermometers
1 x testo 770-3 clampmeter
Carry case
User guides

The testo 550i app-controlled digital manifold with Bluetooth ^®, 2-way valve block and sturdy hook offers extensive measurement technology in an exceptionally compact format. Use this extremely robust manifold to carry out your everyday work on refrigeration and air conditioning systems and heat pumps wirelessly, with ease and reliability. All using the testo Smart App on your smartphone or tablet.

: 0564 2550 02

testo 115i - Clamp thermometer operated via smartphone

: 0560 2115 02

testo 770-3 - clamp meter with Bluetooth^®

: 0590 7703

testo Smart App with the full range of functions - available as a free download

: 0501 5001

0564 2550 02

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

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
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 115i - Clamp thermometer operated via smartphone

0560 2115 02

Temperature - NTC

Measuring range	-40 to +150 °C
Accuracy	±1.3 °C (-20 to +85 °C)
Resolution	0.1 °C

General technical data

Weight	127.4 g
Dimensions	183 x 90 x 30 mm
Operating temperature	-20 to +50 °C
Product-/housing material	Plastic
System requirements	requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.0
Product colour	black/orange
Battery life	150 h
Battery type	3 AAA micro batteries
Data transfer	Bluetooth®
Radio range	100 m
Refrigerant	A2L / A3 compatibel
Storage temperature	-20 to +60 °C

testo 770-3 - clamp meter with Bluetooth^®

0590 7703

Temperature - TC Type K (NiCr-Ni)

Measuring range	-20 to +500 °C
Accuracy	±1 °C (0 to +100 °C)
Resolution	0.2 °C

DC voltage

Measuring range	1.0 to 600.0 V
Resolution	max. 1 mV
Accuracy	± (0.8 % of mv + 3 Digit)

AC voltage

Measuring range	1.0 mV to 600.0 V
Resolution	max. 1 mV
Accuracy	± (1 % of mv + 3 Digit)

DC current

Measuring range	0.1 to 600.0 A (clamp) 0.1 to 600.0 μA (measuring cables)
Resolution	0.1 (clamp) 0.1 (measuring cables)
Accuracy	± (2 % of mv + 5 Digit) (measuring cables) ± (2 % of mv + 5 Digit) (clamp)

AC current

Measuring range	0.1 to 600.0 A (clamp) 0.1 to 600.0 μA (measuring cables)
Resolution	0.1 A (clamp) 0.1 μA (measuring cables)
Accuracy	± (2 % of mv + 5 Digit) (clamp) ± (1.5 % of mv + 5 Digit) (measuring cables)

Resistance

Resolution	max. 0.01 Ohm
Measuring range	0.01 to 60.0 MOhm
Accuracy	± (1.5 % of mv + 3 Digit)

Capacitance

Resolution	max. 0.01 nF
Measuring range	2 nF to 60.00 mF
Accuracy	± (1.5 % of mv + 5 Digit)

Frequency

Resolution	max. 0.1 Hz
Measuring range	0.01 Hz to 9999 kHz
Accuracy	± (1 % of mv + 1 Digit)

Active Power

Measuring range	0.1 W to 600 kW
Accuracy	± (5 % of mv + 5 Digit)
Resolution	0.1 W

Reactive Power

Measuring range	0.1 to 600.0 kvar
Accuracy	± (10 % of mv + 5 Digit)
Resolution	0.1 var

Apparent Power

Measuring range	0.1 VA to 600.0 kVA
Accuracy	± 1 Digit
Resolution	0.1 VA

Direct current DC Voltage

Measuring range	0.1 W to 600.0 kW
Accuracy	± 1 Digit
Resolution	max. 0.1 W

Power Factor

Measuring range	-1.00 to +1.00
Accuracy	± (10 % of mv + 5 Digit)
Resolution	0.01

General technical data

Operating humidity	0 to 80.0 %RH
Weight	378 g
Dimensions	249 x 96 x 43 mm
Operating temperature	-10 to +50 °C
Connectable probes	1 x temperature probe (adapter required for type K thermocouples)
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
Standards	EN 61326-1; EN 61010-2-032; EN 61140
Battery type	3 AAA micro batteries
Display type	LCD (Liquid Crystal Display)
Display size	2 lines
Interface	2 measuring jacks
Storage temperature	-15 to +60 °C
Overvoltage Category	CAT IV 600V; CAT III 1000V
Authorizations	CSA; CE
Internal_resistance	11 MOhm (AC / DC)

Instrument Measurement Functions

Diode test	yes
Continuity testing	yes
Display ligthing	yes
Hold	yes
MinMax	yes
Power Measurement	yes
Temperature measurement with adapter	yes
True RMS	yes
Inrush current measurement	yes
Bluetooth	yes
Display (counts)	6,000
μA current measuring range	yes
Autom. measurement parameter detection	yes

testo Smart App with the full range of functions - available as a free download

0501 5001

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

Air probes

Short response time – due to exposed sensor design.

:
0602 1793

Humidity probes

testo 605i - thermohygrometer operated via smartphone

:
0560 2605 02

Pressure probes

testo 552i - App-controlled wireless vacuum probe

:
0564 2552

Surface probes

Pipe wrap probe for pipe diameter 5 to 65 mm

With clamping bracket: enables quick, easy attachment of the probe to pipes with a diameter of 5 to 65 mm

:
0602 4592

Surface probes

Clamp probe (TC type K) for temperature measurements on pipes with Ø 15-25 mm – Measuring range -50 to +100°C, briefly up to +130°C

:
0602 4692

Surface probes

With Velcro: makes it easy to attach the surface probe to pipes with a diameter of up to 120 mm

:
0628 0020

Surface probes

Magnetic probe (TC type K) - for surface temperatures

Thermocouple type K

:
0602 4792

Surface probes

Magnetfühler, Haftkraft ca. 10 N, mit Haft-Magneten

Self-adhesive thanks to a magnet: probe for measuring surface temperature on metal surfaces

:
0602 4892

Surface probes

Fast-action surface probe with sprung thermocouple strip

Fast response time (3 seconds) thanks to the thermocouple strip

:
0602 0393

Surface probes

Fast response time (3 seconds) thanks to the thermocouple strip

:
0602 0993

Surface probes

Fast-reaction paddle surface probe (TC type K) - Measuring range: - 0 to +300°C

:
0602 0193

Surface probes

Waterproof surface probe with widened measurement tip

Extra-wide measuring tip – ideal for accurate readings on flat surfaces.

:
0602 1993

Surface probes

Efficient, waterproof surface probe with small measurement head

Fast Response Time – Ensures quick and accurate measurements.

:
0602 0693

Temperature probes

testo 115i - Clamp thermometer operated via smartphone

:
0560 2115 02

Temperature probes

testo 915i with flexible temperature probe (TC type K) and smartphone operation

:
0563 4915

Temperature probes

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

:
0613 4611

Thermocouples

Thermocouple with TC adapter, flexible, 800 mm long

Flexible thermoelectric couple (TC type K, glass fibre) – Measuring range: -50 to +400°C

:
0602 0644

Sets

testo 550i Smart Kit – App-controlled digital manifold with wireless clamp temperature probes

:
0564 3550 02

Sets

testo Smart Probes heating kit operated via smartphone

:
0563 0004 10

Sets

testo Smart Probes AC & Refrigeration Test Kit delivery

testo Smart Probes AC and refrigeration test kit operated via smartphone

:
0563 0002 10

Sets

testo Smart Probes AC & Refrigeration Test & Load Kit Plus delivery

testo Smart Probes AC and refrigeration test kit plus, operated via smartphone

:
0563 0002 41

Sets

testo Smart Probes HVAC/R Ultimate kit operated via smartphone

:
0563 0002 32

Accessories

testo 560i kit - Digital refrigerant scale and intelligent valve for automatic charging of refrigeration systems and heat pumps

:
0564 2560

Accessories

testo 560i - Digital refrigerant scale with Bluetooth

:
0564 1560

Accessories

testo Smart App with the full range of functions - available as a free download

:
0501 5001

Accessories

Free download: testo DataControl PC software

:
0501 4000

Accessories

Magnetic strap – for digital manifolds

:
0564 1001

Accessories

Transport case – for digital manifolds

:
0516 2012

Accessories

Clip Split Pin for Digital Manifold

:
0173 0180

Accessories

Main Knob for Manifold

:
0192 1304

Accessories

Blue Cap for Main Knob on Manifold

:
0192 1306

Accessories

Red Cap for Main Knob on Manifold

:
0192 1305

Accessories

Black Cap for Main Knob on Manifold

:
0192 1382

Accessories

Valve core remover

:
0554 3111

Accessories

Shut-off valve 1/4" - 5/16" SAE

:
0554 3112

Accessories

Charging hose adapter 1/4" - 5/16" SAE

:
0554 3113

Accessories

Charging hose adapter 5/16" - 1/4" SAE

:
0554 3114

Accessories

Practical storage case for Smart Probes testo 115i (2x) and testo 549i (2x) (available separately)

:
0516 0240

Accessories

Practical storage case for Smart Probes testo 115i, testo 510i, testo 805i, testo 410i and testo 549i (available separately)

:
0516 0270

Accessories

testo HVAC softcase storage case: for testo Smart Probes measuring instruments

:
0516 0283

Accessories

Adapter for type K thermocouples, measuring range -20 to +500°C

:
0590 0021

Accessories

Safety crocodile clips, 1 set, 10 A, CAT III 600 V

:
0590 0008

Accessories

Crocodile clips, 1 set, 10 A, CAT IV 600 V / CAT III 1000 V

:
0590 0009

Accessories

Standard measuring cables (angled plug), 1 set, tip Ø: 4 mm, CAT II 1000 V

:
0590 0011

Accessories

Standard measuring cables (straight plug), 1 set, tip Ø: 4 mm, CAT II 1000 V

:
0590 0012

Accessories

Measuring cable extensions (straight plug), 1 set, 10 A, CAT IV 600 V / CAT III 1000 V

:
0590 0013

Accessories

Measuring cable extensions (angled plug), 1 set, 10 A, CAT IV 600 V / CAT III 1000 V

:
0590 0014

Accessories

Standard measuring cables (angled plug), 1 set, tip Ø: 2 mm, CAT II 1000 V

:
0590 0010

Transport and Protection

Transport bag, dimensions: 270 x 150 x 75 mm

:
0590 0017

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 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)

Data sheet testo 550i(pdf, 575.02 kB)
Data sheet testo 115i(pdf, 386.99 kB)
testo Smart Probes FAQ(pdf, 1.09 MB)
Information according to Reg. (EU) 2023/2854 (DataAct)(pdf, 140 kB)
Data sheet testo 770(pdf, 2.3 MB)
Information according to Reg. (EU) 2023/2854 (DataAct)(pdf, 140 kB)

Declaration of Conformity testo 550i(pdf, 34.21 kB)
Instruction manual testo 550i(pdf, 1.6 MB)
Quickstart Guide testo 550i(pdf, 1.2 MB)
Technical Documentation A2L/A2/A3 refrigerant testo 550i(pdf, 40.5 kB)
UK Declaration of Conformity testo 115i(pdf, 60.4 kB)
Instruction manual testo Smart Probes(pdf, 1.72 MB)
Technical Documentation A2L/A2/A3 refrigerant testo 115i(pdf, 38.8 kB)
Quickstart testo 115i(pdf, 1.7 MB)
Instruction manual testo 770(pdf, 1.42 MB)
Startup instructions testo 770(pdf, 1.75 MB)