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.

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
Hose filling set with 4 hoses
Instruction manuals
Transport case
Testo Smart App (free download)