Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and large graphic display
Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP 54 protection class
Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth® connection, testo Smart App for documentation and lots more
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
Description
Product Description
Start your wireless measurements on refrigeration and air conditioning systems and heat pumps straight away. Thanks to the Bluetooth vacuum probe supplied, you can even measure vacuum without any cables or hoses. You will get the testo 557s smart digital manifold with Bluetooth and 4-way valve block, one testo 552i wireless vacuum probe (Bluetooth), two testo 115i wireless clamp thermometers (Bluetooth, NTC) and a robust transport case. For other wireless measurements, other optionally available testo Smart Probes are also ideal.
Delivery Scope
testo 557s digital 4-way manifold including batteries (4 x AA) and calibration protocol
1 x testo 552i wireless Bluetooth vacuum probe
2 x testo 115i wireless Bluetooth clamp thermometers
Transport case
testo Smart App (free download)
Instruction manuals
Specification
Temperature
Measuring range
-50 to +150 °C
Accuracy
±0.5 °C
Resolution
0.1 °C
Probe connection
2 x Plug-in (NTC)
Pressure measurement
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
General technical data
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 type
4 x type 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®
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 AAA micro batteries
Battery life
39 h
Connection
7/16“ UNF
Interface
Bluetooth® 4.2
Storage temperature
-20 to +50 °C
* when not connected via Bluetooth
Temperature - NTC
Measuring range
-40 to +150 °C
Accuracy
±1.3 °C (-20 to +85 °C)
Resolution
0.1 °C
General technical data
Weight
127.4 g
Dimensions
183 x 90 x 30 mm
Operating temperature
-20 to +50 °C
Product-/housing material
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 AAA micro batteries
Battery life
150 h
Data transfer
Bluetooth®
Radio range
100 m
Storage temperature
-20 to +60 °C
Applications
Refrigeration systems, air conditioning systems, heat pumps
Determination of high and low pressure, automatic determination of condensation and evaporation temperature and calculation of superheating/subcooling. All results can be read simultaneously on one screen
Tightness test: Recording and analysis of the pressure curve
Automatic calculation of the target superheat (in conjunction with the appropriate measuring instrument, e.g. Testo Smart Probe)
Measure vacuum: Graphic progression display of the measurement with indication of the start and differential value
Evacuation: Graphic progression display of the measurement with indication of the start and differential value (in conjunction with the appropriate Testo Smart Probe, e.g. testo 552i vacuum probe)
testo 557s digital 4-way manifold including batteries (4 x AA) and calibration protocol ; 1 x testo 552i wireless Bluetooth vacuum probe ; 2 x testo 115i wireless Bluetooth clamp thermometers ; Transport case ; testo Smart App (free download) ; Instruction manuals
