I've got both Insteon and YoLink devices in my EISY-based setup.

I just installed new Velux solar-powered skylights. These claim to have a rain sensor integrated into the solar panel, but after investigating, it turns out that it's really just a sound/knock sensor. That is, when rain drops hit it, there's a noise/vibration and it interprets that as rain and closes the skylights.

However, last night/this morning/right now it's drizzling. Definitely more than a mist, but the rain drops are small/light enough that they're not triggering the Velux sensor. Since I do have the ability to close the skylights via my EISY, I'm thinking an external rain sensor might be a good option, but I can't find one made by Insteon or YoLink. Both have water sensors, but they need puddles underneath. There's a YoLink version that has two contacts on the top and so that might work, but I'm reaching out in case anyone knows of anything specific.

 

You could invest in a weather station that's more sensitive to rain such as the Tempest. The problem is that a light drizzle will probably go unnoticed

Edited September 9Sep 9 by Techman

Yeah, I could do a weather station, and might be fun to have the stats, but if it doesn't detect light drizzle, or even moderate drizzle it's not helping me.

Another option is to use an outdoor sensor that measures LUX.  When the sky clouds up the lux will drop. 

I did this at my last house. Hydreon is still around. I connected it to an iolinc, but you should be able to substitute YoLink's i/o contact, which I have been considering to add to this house

 

Edited September 9Sep 9 by paulbates

@smorgasbord My weather station, Davis Instruments' Vantage Pro 2, detects heavy dew.  It definitely detects light drizzle.

You could have the skylights close as soon as it registers 0.01.  And reopen after 1 or 2 dry hours.

There is a plugin for it.

Ross