With the testo 552i vacuum probe incl. Bluetooth, you can measure vacuum wirelessly, quickly, easily and precisely via just one service connection - without any loss of refrigerant. The testo Smart App provides support with numerous intelligent functions - for example, you can detect vacuum immediately at a glance thanks to the graphic display in the app or on the display of the fitter's aid. Applicable - in compliance with the relevant laws, standards, guidelines of refrigeration systems - for use with A2L refrigerant. Product advantages: https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2022-06-06 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2022-07-23 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2022-11-13 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2023-04-04 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2023-05-13 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2024-01-30 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2025-12-15 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2026-01-10 https://elecena.pl/product/20965085/0564-2552-app-controlled-wireless-vacuum-probe-testo-552i 2026-02-19