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Click to copyEasier, more flexible measurements and documentation: With the testo 557s digital manifold with Bluetooth and 4-way valve block, you‘ll be ideally equipped for your measuring tasks in the field of ...
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Easier, more flexible measurements and documentation: With the testo 557s digital manifold with Bluetooth and 4-way valve block, you‘ll be ideally equipped for your measuring tasks in the field of commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps.
Are you interested in this measuring instrument? Testo has put together practical kits for you – so you’ll be optimally equipped to tackle your measuring tasks right away.
Length
22.9 cm
Width
11.25 cm
Height
7.1 cm
Weight
1.243 kg
Weight
1243 g
Dimensions
229 x 112.5 x 71 mm (LxWxH)
Operating temperature
-20 to +50 °C
Protection class
IP54
Product colour
Black
Auto-off
10 min*
Battery life
250 h with no illumination, no Bluetooth ® h (without illumination, without Bluetooth®, without vacuum probe); 100 h with illumination and Bluetooth ®
Battery type
4 x type AA batteries
Radio range
150 m
Pressure media
CFC
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)
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; R411A; R412A; R413A; R417A; R417B; R417C; R422A; R426A; R508A; R508B; R600; RIS89; SP22
Refrigerant
A2L / A3 compatibel
Storage temperature
-20 to +60 °C
footnote_
* when not connected via Bluetooth
Measuring range
-1 to 60 bar
Accuracy
±0.5 % fs
Resolution
0.01 bar
Probe connection
3 x 7/16" – UNF + 1 x 5/8'' – UNF
Overload rel. (high pressure)
65 bar
Measuring range
-50 to +150 °C
Accuracy
±0.5 °C
Resolution
0.1 °C
Probe connection
2 x Plug-in (NTC)
Easier, more flexible measurements and documentation: With the testo 557s digital manifold with Bluetooth and 4-way valve block, you‘ll be ideally equipped for your measuring tasks in the field of commissioning, servicing and maintenance of refrigeration and air conditioning systems and heat pumps.
Are you interested in this measuring instrument? Testo has put together practical kits for you – so you’ll be optimally equipped to tackle your measuring tasks right away.