Product registration
When you register your product, we will extend the regular manufacturer's warranty by one year.
Measuring range | -50 to +150 °C |
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Accuracy | ±0.5 °C |
Resolution | 0.1 °C |
Probe connection | 2 x plug-in (NTC) |
Measuring range | -1 to 60 bar |
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Accuracy | ±0.5 % fs |
Resolution | 0.01 bar |
Probe connection | 3 x 7/16" – UNF |
Overload rel. (high pressure) | 65 bar |
Weight | 826 g |
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Dimensions | 210 x 121 x 60 mm (LxWxH) |
Operating temperature | -20 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 min* |
Battery life | 250 h with no illumination, no Bluetooth<sup>®</sup>; 100 h with illumination and Bluetooth<sup>®</sup> |
Battery type | 4 x type AA 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; Ra11A; 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 |
Measuring range | -40 to +150 °C |
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Accuracy | ±1.3 °C (-20 to +85 °C) |
Resolution | 0.1 °C |
Weight | 127.4 g |
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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 |
System requirements | requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.0 |
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testo 550s Smart Kit – Smart digital manifold with wireless clamp temperature probes and hose filling set
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