This Testo 550i digital manifold set is designed for app-controlled, wireless measurements and digital documentation on your smartphone. Included in the set are the app-controlled Testo 550i digital manifold including Bluetooth, 2-way valve block and stable hook, two Testo 115i cordless pliers thermometer (Bluetooth, NTC) and a robust carrying case. For further wireless measurements, Testo Smart Probes for temperature, humidity and vacuum are an ideal extension. This way you are best equipped for measuring tasks in refrigeration and air conditioning systems, as well as heat pumps. https://elecena.pl/product/28140357/testo-0564-3550-smart-set-digital-manifold-bluetooth-app-controlled-system 2025-03-30 https://elecena.pl/product/28140357/testo-0564-3550-smart-set-digital-manifold-bluetooth-app-controlled-system 2025-08-19