testo 512-2 digital differential pressure gauge with app connection With the compact testo 512-2 differential pressure gauge (0 - 2000 hPa), you have the ideal solution for simple, fast and precise measurement of the gas flow and gas idle pressure on heating systems or for controlling filters on air-conditioning systems. The testo Smart app supports you with helpful features such as configuration, display (also as a second screen) and storage as well as documenting the measured values directly in the app. https://elecena.pl/product/23597121/0563-2512-testo-512-2-digital-differential-pressure-gauge-0-to-2000-hpa 2023-06-05 https://elecena.pl/product/23597121/0563-2512-testo-512-2-digital-differential-pressure-gauge-0-to-2000-hpa 2025-04-07