Does this unit connect to a read out box or a computer?
Tim
It's a bit more complicated than that. If by read-out box you mean a counter, then yes, that is one way it can be used.
You can read about it at
http://www.rainsensors.com/ and download the manual PDF at
http://www.rainsensors.com/docs/rg-11_instructions.pdf.
It has a single SPDT relay output, and several different modes.
* Tipping Bucket Emulation-- Replace your tipping bucket with a low maintenance alternative.
* "It's Raining"-- Close a skylight at the first sign of rain, and open it when it stops raining.
* Condensation / Frost Sensing
* Wiper control
* Irrigation Control-- No more watering during a downpour!
* Drop Detection
As a rain gauge it can be set for several different modes, like 0.01", 0.001", or even 0.0001" (and similar metric modes). However, even in 0.01" mode it's not as accurate as a tipping bucket, let alone a manual gauge.
There's a older thread about it at
http://www.wxforum.net/index.php?topic=12273.0 if you want to read more.