
Digital manifold
testo 549 – the manifold for
refrigeration systems and heat
pumps.
We measure it.
Calculation of superheating/subcooling in real time with up
to two external temperature probes
2-way valve block with three connections, three hose
parkers and sight glass
60 common refrigerants stored in the instrument
Display illumination for better legibility in dark surroundings
250 hours' battery life
The new testo 549 is the robust tool for daily work on
refrigeration systems and heat pumps. The robust 2-way
metal valve block with 3 connections and 3 hose parkers
allows you to work quickly and easily. The more robust
housing, with a metal frame around the display, protects the
new testo 549 even more reliably from impact. The
suspension hook guarantees secure attachment of the
ba r
ps i
°C /° F
kPa
MPa
digital manifold during measurement. The testo 549 is
excellently suitable for commissioning, service and
maintenance. Thanks to additional features such as the
automatic heat pump mode, which eliminates the need to
switch over the hoses, and the temperature-compensated
tightness test function, working on refrigeration systems
and heat pumps is easier than ever before.
www.testo.com

esto 549 We mea sure it.
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Technical data / Accessories
General technical data
testo 549
testo 549, digital manifold for refrigeration
ystems and heat pumps; incl. batteries and
s
alibration certificate
c
Part no. 0560 0550
Operating temperature -10 to +50 °C
torage temperature -20 to +60 °C
S
Battery life 250 h (without illumination,
Dimension s 200 x 109 x 63 mm
eight 1060 g
W
Protection class IP42
efrigerants in the
R
nstrument
i
without Bluetooth
0 profiles: R11, R12, R123, R1234yf,
6
1234ze, R125, R13B1, R134a, R14, R142B,
R
R152a, R161, R22, R227, R 23, R290 , R32,
R401A, R401B, R401C, R402 A, R 402B,
R404A, R406A, R407A, R407 B, R 407C,
R407D, R407F, R408A, R409A, R41 0A,
R411A, R412A, R413A, R414 B, R 416A,
417A, R420A, R421A, R421B , R4 22A,
R
422B, R422C, R422D, R424A, R426A,
R
R427A, R434A, R437A, R438 A, R 502, R503,
R507, R508A, R508B, R600, R600a,
744 (CO
R
ervice
S
, R718 (H
)
2
®
)
), update by Testo
O
2
Warranty 2 years
Sensor types
Pressure Temperature
Measuring range -1 to 60 bar -50 to +150 °C
Accuracy (at 22 °C) ±0.5 % fs ±0 .5 ° C
Resolutio n 0. 01 bar 0.1 °C
Probe connections 3 x 7/16" – UNF 2 x plug-in (NTC)
Overload 65 bar –
Vacuum
-1 bar to 0 bar
–
–
–
–
Accessories
Accessori es for me asuring instrum ent
* also suitable for testo 549
Part no.
0516 0012Transport case for testo 550 and accessories

esto 549
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Probes
e mea sure it.
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Probe type
Air probes
fficient, robust NTC air probe
E
urface probes
S
lamp probe for measurement on
C
pipes for diameter 6 to 35 mm,
NTC, Fixed cable 1.5 m
Clamp probe for temperature
easurements on pipes from 6 mm
m
o 35 mm diameter, NTC, Fixed
t
cable 5.0 m
Pipe wrap prob e with Velcro for
ipe diameter to max. 75 mm,
p
Tmax. +75 °C, NTC,
ixed cable 1.5 m
F
Pipe clamp probe (NTC) for pipe
diameters 5 to 65 mm,
Fixed cable 1.2 m
Dimension s
robe shaft/probe shaft ti p
P
115 mm
Ø 5 mm Ø 4 mm
300 mm
5
0 mm
Measuring
ange
r
-50 to +125 °C ±0.2 °C (-2 5 to +80 °C)
-40 to +125 °C
-40 to +125 °C
-50 to +70 °C
30 mm
50 ... +120 °C
-
Accuracy
±0.4 °C (rem ainin g range)
±1 °C (-20 to +85 °C )
±1 °C (-20 to +85 °C )
±0.2 °C (-2 5 to +70 °C)
±0.4 °C (-5 0 to -25.1 °C)
0.2 °C (-25 .. . +80 °C)
±
Part no.
613 1712
0
613 5505
0
0613 5506
0613 4611
0613 5605
Waterp roof NTC surface probe for
flat surfaces,
Fixed cable 1.2 m
The suspension hook guarantees
secure attachment of the digital
manifold during measurement.
115 mm 50 mm
Ø 5 mm
Clamp probe for pipes from
Ø 6 mm to Ø 35 mm, NTC
-50 to +150 °C
Long-te rm
meas. ran ge
+125 °C, sh ort-
erm +150 °C
Ø 6 mm
t
(2 minute s)
Large, backlit display
±0.5% of m. v. (+100 to +150 °C )
±0.2 °C (-2 5 to +74.9 °C)
±0.4 °C (rem ainin g range)
0613 1912

esto 549
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e mea sure it.
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1981 0814/msp/A/01.2015
www.testo.com
Subject to change without notice.