VRGH-01 measures the precipitation by means of a funnel
(orifice 200 cm2), which leads the water down into the self-emptying
tipping POM bucket, held in place by a hard ferrite
The magnet always exerts just enough tension to allow
the measuring bucket to empty in one quick movement (less
than 300 ms) and then return to its normal position, ready to
collect precipitation once again.