Motion sensor sprinkler?

[jp12687 (Josh)]

Hey

I’m looking for a good outdoor motion sensor I can tie into ST and use to trigger our sprinklers.

We have deer issues eating our garden and nothing is scaring them away.

It would need to be fairly high power as it’s far away from the house and work at night when it’s getting eaten.

Thanks!

[JDRoberts]

Outdoor motion sensors that connect directly to smartthings tend to be unreliable (lots of false alerts) because they’re almost all PIR based, which just measures very small changes in heat moving across the sensor field. So the problem is just a gust of warm air or the sun going behind a cloud can trigger the sensors. In fact, the aeotec multisensor, which is rated for outdoor use, suggest turning off the motion sensor feature altogether if the device is used outside, and just using it for temperature, light, and humidity detection. This problem is even worse for mesh devices, such as those using zwave.

There are some options. See the outdoor motion sensor FAQ, which details them. (This is a clickable link)

FAQ: Do you know of an outdoor motion sensor?

I am looking for outdoor motion sensors to monitor my yard. I bought a pair of the Aeon Labs Aeotec Z-Wave Multi-Sensor and am quite unhappy with them. Even on the lowest sensitivity setting it randomly sends alerts, some perhaps due to clouds changing the lighting (even though PIR is not supposed to be susceptible to this) and others I can’t explain at all. With several false alerts a day this thing is just useless. The Smartthings Motion sensor works great, I have some in my house, but it is indoor rated only. The Schlage / Nexia motion sensor is also indoor use only. I am hoping someone has come across an outdoor rated motion sensor they have been able to pair with the Smartthings hub.

That thread is quite long and covers a lot of different use cases, including driveway detection, so for your particular use case I think the short answer is either going to be use three different sensors and set up a zone using Mike Maxwell’s smart app so that all three sensors have to detect motion before you consider it a real alert.

Smart Zone motion detector (Zone Motion Manager) [Deprecated -- no longer supported]

I built this to solve a number of motion related issues. –Reduction of false motion events in exterior applications (False Motion Reduction) –Represent a group of detectors with a single virtual detector (Motion Aggregation) –Enable a Motion Aggregation zone from various devices, switches, contacts ect (Triggered Activation) This is a parent/child application (like Smart Lighting) where the motion zones are created and edited from the parent application. When a new virtual zone is created, a virtual motion sensor is created for that zone. This virtual motion detector represents the states of the physical motion detectors that you configured for that zone. You can then use that virtual zone device in any applications that accept motion devices. [image] [image] [image] Three co…

Or, use the Kumo outdoor sensors, but those are going to require also getting their $40 ethernet bridge (one bridge can support up to 40 sensors.) The Kumo are nicely weatherproofed, have better range and fewer false alerts, but it’s a cloud to cloud integration with SmartThings. Or you can use IFTTT. There are quite a few community members using them, but it may not be what you want.

http://wirelesstag.net/specs.html

But do read the FAQ thread, it goes into a lot of detail about different options.

[ero4444 (Eric)]

I used a battery-powered electric fence charger for many years. There are some that use D-cells but most are 12V SLA. Solar chargers might work ok with less maintenance.

The fence itself, is very easy to install.

Always works.

Also there is an integral motion-detecting sprinkler called “scarecrow”, that makes a great racket and usually squirts the owner too. Driven by 9v battery and less reliable. The deer might learn to like it.

[Okay (Shane)]

I have tried Aoen multi for outdoor motion. Alot of variables. Seems to work okay inside.I was also using it for driveway sensor.
I did find the Arlo motion sensor on the camera to be fairly reliable. Especially if mount it so direction of movement goes across and not toward. But I used it to close my garage door as the car backs out of garage and it was above garage (movement toward and away) worked good.
But I was going to do what your doing for stray dogs in the lawn not just to scare away but also deluit the urine.
Dont use it anymore, found a better way for garage door.