LOL...And don't mount them too low if there are dogs around or it will be alerting you all the time.
Was over at her house once, thing kept alerting, look outside, nothing.
Thought it was defective ‘til I saw it alert when a squirrel ran across the driveway. Also had to adjust the angle on it as it was alerting to cars driving by on the street.
Pretty impressive for $13.
I’ve got a couple for my place its just been too hot (good excuse) to hang ‘em.