ADS Environmental Services RainAlert II QR 775008 A2 - Manual (Page 21)

System Overview 2-9
Tipping Bucket
The RainAlert II monitor uses a tipping bucket (ADS p/n
103202A/B/C/D) containing a funnel and tipping mechanism to
collect rainfall. When the tipping mechanism becomes full, it
empties and closes a contact to register a tip on the digital counter
located in the RainAlert II monitor.
The tipping bucket mounts to a sun shield covering the monitor
(when applicable) or to a base plate when the monitor is installed in
another location.
Tipping bucket
The RainAlert II also can support any other brand of tipping bucket
that issues a contact closure to indicate rain tips. ADS offers an
intermediate pigtail cable (ADS p/n 5000-0721) to allow connection
of other tipping buckets to the monitor for these applications.