Chauvin Arnoux Data Logger, 2 Channels, Bluetooth 2.1/USB,

Its ergonomics makes it even simpler to use: magnetized rear panel, Multifix system, desktop stand. It operates on rechargeable batteries or the mains supply. Logical level detection, Dry contact closure, Event counter. Menus are multilingual and the users can lock the keypad with the Dataview® software.