Kit Testo 557s. The kit includes testo 557s digital 4-way manifold, 1 x testo 552i wireless Bluetooth vacuum probe, 2 x testo 115i wireless Bluetooth thermometers, hose filling kit 3x 7/16″ UNF and 1x 5/8 UNF, transport case, Testo 560i digital refrigerant scale with Bluetooth, refrigerant valve with Bluetooth, shoulder bag