How do I turn off a bathroom exhaust fan when humidity is below a threshold

SmartApps & Automations
21

Thanks for sharing your set-up @rontalley! Glad to hear the sensor is working well for you!

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Thanks for the help. Iā€™m actually getting a list together of things to buy now that I seem to have a reliable controller. I moved over from the Zipato and am learning that it was an absolute piece of junk. There seems to be some quirks with the ST and wireless door sensors, but Iā€™m trying to work that out now. Either way, ST seems much more reliable and has motivated me to automate more stuff!

Iā€™ll pick up one of their sensors. Is it this one? I had no idea that TheSmartestHouse was Zooz. Zooz support is bar none the best support Iā€™ve ever encountered in the world of technology.

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23

Yep thatā€™s the one. Depending on where you install it, you can opt to hard-wire it with a little bit of soldering. Iā€™ve done this to as many sensors as I could. Can use the same power adapter for a bunch of these sensors as they hardly take any juice. Will save money and time changing batteries!

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Does that run up into your attic? I donā€™t have any easy way to get wires to where the sensors would go. Might just have to pony up for the batteries.

Hopefully I get a little use out of them before needing batteries.

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The new version uses a single CR123A battery so it will last much longer on it than on the 2 AAA batteries from the previous version. You should get around a year of battery life with average use.

1 Like
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Yep, goes up to the attic where I plugged the power adapter in a socket that was up there. That same power adapter has about 12 sensors on it.

I still have a bunch of sensors with batteries that I am constantly changing. Wish I could hard wire them all but if they last for at least 9 months then I am ok with that.

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Holy cow, thatā€™s a lot of battery powered sensors! Sounds like you might be just the person to ask about them. Do you have a sensor of choice for different things (motion, doors, etc?).

Iā€™m also having issues wrapping my head around the wireless sensors. Every set of instructions Iā€™ve read, tells you to pair the device with the hub when youā€™re a few feet away. If thatā€™s the case and you move the sensor to its final location, will it get itā€™s routes updated? Basically, how will it ever know about the rest of the mesh network, if it doesnā€™t know its neighbors?

I know you can do a network repair, but my understanding is that wireless sensors donā€™t wake up for the repair.

Perhaps Iā€™m getting off track and should open a new thread?

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I can attest to this. I installed a Zooz 4 in 1 in my bathroom over a month ago to measure humidity and control the bathroom fan. It has the CR123A battery. As of this date the battery level still reads 100%! The humidity control works great. I am using it with a DTH from @krlaframboise.

I am using a Webcore piston similar to the one posted by @rontalley above. The current settings that seem to work now (in San Antonio Tx) areā€¦ turn on fan upon a rise in relative humidity above 55%. Turn off fan upon a drop in relative humidity below 54%. Turn off fan if fan stays on for 30 minutes for any reason. I may have to adjust the setpoints during the winter months. We will see.

1 Like
29

I use that automation.