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 the vacuum without any cables or hoses. You will get the Testo 557s smart digital manifold with Bluetooth and a 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.

FEATURES

Completely wireless measurements and all results at a glance: thanks to Bluetooth probes and a large graphic display
Exceptionally compact and reliable thanks to the easy-to-handle, robust housing with IP54 protection class
Easy, wireless, flexible measurements and documentation: Temperature and vacuum measurements via automatic Bluetooth connection, Testo Smart App for documentation, and lots more

PACKING INCLUDES

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
Instruction manuals
Transport case
Testo Smart App (free download)