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Specifications:Testo 557s Smart Vacuum Kit Digital Manifold
PressureTemperature
Measuring range-15 to 870 psi (-1 to 60 bar)-58 to 302 °F (-50 to +150 °C)
Accuracy (at 70 °F)±0.5 % fs±.9 °F (±0.5 °C)
Resolution0.14 psi / 0.01 bar0.1 °F (0.1 °C)
Connections3 x 7/16" – UNF2 x plug-in (NTC probes)
(Wired Clamps Not Included with this Kit)
Overload940 psi (65 bar)-
General
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)250 h with no illumination, no Bluetooth®; 100 h with illumination and Bluetooth®
Dimensions9 x 4.4 x 3 in. (LxWxH) / 229 x 112.5 x 71 mm (LxWxH)
Weight44 oz. / 1243 g
Auto-off10 min (when not connected via Bluetooth)
Data transferBluetooth®
Bluetooth technology/
range
Bluetooth® 5.0 (up to 500 ft)
Warranty2 years
Protection classIP54
System requirementsrequires iOS 12.0 or newer; requires Android 6.0 or newer;
requires mobile end device with Bluetooth 4.0
Refrigerants in instrumentR407H; 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 AppR11; 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