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All activities, from measurement through to documentation, using the App on your Smartphone
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The smallest digital manifold on the market
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Maximum reliability and excellent flexibility: extremely rugged housing with protection class IP54, optionally expandable with the wireless testo Smart Probes for temperature, humidity and vacuum
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In the kit: App-controlled testo 550i digital manifold with Bluetooth® and 2-way valve block, 2 x testo 115i wireless clamp temperature probes (Bluetooth, NTC), testo 552i wireless vacuum probe (Bluetooth), case
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General technical data Weight
20.99 oz. / 595 g
Dimensions
3.03 x 4.29 x 2.48 in. / 77 x 109 x 63 mm
Operating temperature
14° to 122 °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 4.0
Product colour
Black
Auto-off
10 min*
Battery type
3 x AAA
Battery life
130 h
Data transfer
Bluetooth®
Radio range
492.12 ft. / 150 m
Refrigerants in instrument
R407H; R23; R290; R1234yf; R442A; R134a; R123; R452B; R438A; R421A; R453a; R401B; R1233zd; R410A; R407A; R407C; R452A; R401A; R422C; R427A; R422B; R424A; R125; R414B; R404A; R408A; R448A; R422D; R12; R114; R421B; R449A; R409A; R420A; R444B; R32; R454A; R124; R402A; R450A; R407F; R416A; R13; R437A; R1234ze; R454B; R402B; R22; R434A; 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; 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
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
Overload rel. (high pressure)
943 psi / 65 bar
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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 8.3 or newer; requires Android 4.3 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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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 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0
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
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)
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