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Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display
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Exceptionally compact and reliable thanks to the easy-to-handle, rugged housing with IP 54 protection class
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Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth® connection, testo Smart App for documentation and lots more
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In the kit: testo 557s smart digital manifold with Bluetooth and 4-way valve block, 1 x testo 552i wireless vacuum probe (Bluetooth), 2 x testo 115i wireless clamp temperature probes (Bluetooth, NTC), case
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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 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 + 1 x 5/8'' – UNF
Overload rel. (high pressure)
943 psi / 65 bar
General technical data Weight
44 oz. / 1243 g
Dimensions
9 x 4.4 x 3 in. (LxWxH) / 229 x 112.5 x 71 mm (LxWxH)
Operating temperature
-4° to 122 °F / -20 to +50 °C
Protection class
IP54
Product colour
Black
Auto-off
10 min*
Battery type
4 x AA batteries
Battery life
250 h with no illumination, no Bluetooth®h (without illumination, without Bluetooth®, without vacuum probe); 100 h with illumination and Bluetooth®
Radio range
492.12 ft. / 150 m
Pressure media
CFC
Refrigerants in instrument
R1234yf; R744 (CO₂); R437A; R503; R452A; R500; R114; R444B; R407H; R422B; R434A; R410A; R290; R449A; R401B; R407F; R13; R123; R718 (H₂O); R404A; R125; R416A; R421B; R422C; R448A; R22; R407A; R409A; R12; R454B; R414B; R442A; R1233zd; R420A; R424A; R458A; R427A; R450A; R124; R502; R1234ze; R600a; R23; R402B; R455A; R454A; R407C; R453a; R513A; R401A; R422D; R402A; R507; R454C; R408A; R421A; R134a; R32; R452B; R438A
System requirements
requires iOS 11.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.0
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
Storage temperature
-4° to 140 °F / -20 to +60 °C
* when not connected via Bluetooth
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Temperature - NTC Measuring range
-40° to 302 °F / -40 to +150 °C
Accuracy
±2.3 °F (-4° to 185 °F) / ±1.3 °C (-20 to +85 °C)
Resolution
0.1 °F / 0.1 °C
General technical data Weight
4.49 oz. / 127.4 g
Dimensions
7 x 4 x 1 in. / 183 x 90 x 30 mm
Operating temperature
-4° to 122 °F / -20 to +50 °C
Housing
Plastic
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/orange
Battery type
3 x AAA
Battery life
150 h
Storage temperature
-4° to 140 °F / -20 to +60 °C
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Absolute Pressure Measuring range
0 to 0.39 psi / / 0 to 26.66 mbar /
0 to 20000 micron
Accuracy
±10 micron + 10 % of mv (100 to 1000 micron)
±(1
Resolution
1 micron (0 to 1000 micron) /
10 micron (1000 to 2000 micron) /
100 micron (2000 to 5000 micron) /
Overload
absolute: 87.0 psi / 87 psi / absolute: 6.0 bar / 87 psi
(relative: 72.5 psi / 72 psi) / (relative: 5.0 bar / 72 psi)
General technical data Weight
5 oz. / 142 g
Dimensions
6 x 1 x 1 in. (LxWxH) / 150 x 32 x 31 mm (LxWxH)
Operating temperature
14.0° to 122.0 °F / -10 to +50 °C
Protection class
IP54
System requirements
requires iOS 12.0 or newer; requires Android 6.0 or newer; requires mobile end device with Bluetooth 4.2
Product colour
black/orange
Auto-off
10 min*
Battery type
3 x AAA
Battery life
39 h
Connection
7/16“ UNF
Interface
Bluetooth® 4.2
Storage temperature
-4.0° to 122.0 °F / -20 to +50 °C
* when not connected via Bluetooth
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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
