Atmospheric CO2


RiVerKing, optical Viking Water Level Meter
This historical Viking Water Level Meter was discovered in the South of France.

Project status : fully functional version updated roughly every 1050 years

(Come back for updates regularly. RiVerKing right-eyed version Anno 950 updated with left-eye model in 2019 by Erik Thevking)

To achieve great things, two things are needed: a plan, and not quite enough time.
(Leonard Bernstein)


RiVerKing, right-eyed version, Anno 950 Align river level along lines on far tree, and read river level on this tree... 2019 update: left-eye model by Erik Thevking


More Lab.vKîng projects...

Cave climate monitoring station in Aven de la Forestière

Prototype 9.0.4 of Co2vKing, our smallest CO2-meter, waiting for its 3D-printed jacket before its departure underground...

Co2vKing-Alti, prototype for detecting layered CO2-beds in vertical caves.


Where possible, instruments, lab equipment, battery chargers and lights are running on green energy. Prototypes are built from biodegradable 3D print filament and materials respecting our planet. We're using Rohs lead-free solder. We're also trying to avoid needless courier services between suppliers w'd like to buy from here in France and, their warehouses or country of production... far away !

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