Design: Nikolaj Nemeth & Peter S. Jessen 2025
This barograph A4004 replaces the A4003.
It’s based on a touchscreen (E-ink display), a rechargeable battery
and all the main features of the A4003.
In addition to the barograph function, that is the atmospheric pressure as function of time, it also features temperature and rel. humidity as function of time. The sailing ship pictogram indicates that gale warning is turned on and you are safe. Gale warning on means if pressure drops 3 hPa or more within 3 hours or less, you get an alarm (both audible and on the screen).
Introductions:
English introduction French introduction
High resolution image download: A4004 A4004 side A4004 rear
Congratulations with your A4004 barograph. Here's some getting started instructions/advice:
Turn your unit on and it will blink (it blinks every time it makes a screen update) and then it's ready. Touch and hold your finger on the date area until a window opens giving you access to adjusting the date. Do the same with the time. Please note that when you touch the arrow up or down you reset the clock - the seconds start from zero. This is good to know when you want to set the clock accurately.
A short touch of the temperature reading area changes the graph to temperature and the same for the relative humidity area and the pressure reading area.
A long touch of the temperature reading area changes the reading from Celsius to Fahrenheit or the other way round.
A long touch of the pressure reading area gives you access to the Pressure Settings.
A long touch of the pressure unit area changes the reading from hPa to inHg or the other way round.
When you swipe the graph backwards and forward you change the time axis reading: 2 hours - 8 hours - 24 hours - 10 days.
A short touch of the graph area will give you minimum and maximum readings and time information within the shown time window.
A long touch of the sailing ship pictogram area disables the gale warning; not recommended when at sea.
The M (menu) gives you access to more settings. The alarm clock... is what you expect.
I hope you will enjoy investigating your new unit by yourself!
Kind regards Peter (27/3-26)