Overview of Primary Product

Testo Inc. 800-227-0729 [e-mail] www.testo.com
testo 557
Technical Data
testo 557
testo 557 kit, digital manifold with
Bluetooth, 2 x clamp probes, external
vacuum probe, batteries, case and
certificate of conformity
Part no. 0563 1557
Operating temperature -4° to 122° F (-20 to +50 °C)
Storage temperature -4° to 140° F (-20 to +60 °C)
Battery life
(4 x AA Alkaline)
250 h (less with use of Bluetooth, backlight
and vacuum)
Dimensions 8.7”x4.0”x2.75” (220 x 101 x 70 mm)
Weight 2.8 lb (1270 g)
Protection class IP42 (splash proof)
Warranty
2 years; 5 years with registration
Refrigerants in the
instrument
60 profiles: R11, R12, R123, R1234yf,
R1234ze, R125, R13B1, R134a, R14, R142B,
R152a, R161, R22, R227, R23, R290, R32,
R401A, R401B, R401C, R402A, R402B, R404A,
R406A, R407A, R407B, R407C, R407D, R407F,
R408A, R409A, R410A, R411A, R412A, R413A,
R414B, R416A, R417A, R420A, R421A, R421B,
R422A, R422B, R422C, R422D, R424A,
R426A, R427A, R434A, R437A, R438A, R502,
R503, R507, R508A, R508B, R600, R600a,
R744 (CO
2
), R718 (H
2
O), update via App
0516 0012
Transport case for testo 549/550/557
and accessories
Probes / Accessories
Clamp probe for pipes to 1.38”
diameter (35 mm), NTC, Fixed cable
4.9 ft. (1.5 m)
Clamp probe for pipes to 1.38”
diameter (35 mm), NTC, Fixed cable
16.0 ft. (5.0 m)
Pipe wrap probe with Velcro for pipe
diameter to max. 3” (75 mm), NTC,
Fixed cable 4.9 ft. (1.5 m)
Pipe clamp probe (NTC) for pipe
diameters 0.2” to 2.5” (5 to 65 mm),
Fixed cable 9 ft. (2.7 m)
-40 to 257 °F
(-40 to 125 °C)
-40 to 257 °F
(-40 to 125 °C)
-58 to 158 °F
(-50 to +70 °C)
-58 to 248 °F
(-50 ... +120 °C)
±1.8 °F (-4 to 185 °F)
±1 °C (-20 to +85 °C)
±1.8 °F (-4 to 185 °F)
±1 °C (-20 to +85 °C)
±0.4
°F (77 to 158 °F)
±0.2 °C (-25 to +70 °C)
±0.8
°F (-58 to -13 °F)
±0.4 °C (-50 to -25.1 °C)
±0.4
°F (77 to 176 °F)
±0.2 °C (-25 ... +80 °C)
0613 5505
0613 5506
0613 4611
0613 5605
11.80”
(300 mm)
1.18
”
(30 mm)
Range Accuracy Part No.
i.o
Subject to change without notice.
Pressure Temperature
Measuring range -14.7 to 870 psi (-1 to 60 bar) -58 to 302 °F (-50 to +150 °C)
Accuracy (at 70 °F) ±0.5 % fs ±0.9 °F (±0.5 °C)
Resolution 0.1 psi (0.01 bar) 0.1 °F (0.1 °C)
Connections 1/4”, 3/8” 2 x plug-in (NTC probes)
Overload 940 psi (65 bar) –
Vacuum
0 to 20,000 Micron
External vacuum probe (DIN connection)
1 micron (from 0 to 1000 micron)
–
Specifications
±10% of rdg +10 microns (100 to 1000 microns)
External vacuum probe
(DIN connection)
0638 1557
±10% of rdg +10 microns
(100 to 1,000 microns)
0 to 20,000
microns
Two-valve field replacement kit
400554 5500