ASPECTEK Yard Sentinel Ultrasonic Animal Repeller with Strobe Light, 3 Mode Protection, Motion Sensor, Deterrent for Deer, Raccoons, Squirrels and Opossums AC and Battery Powered - 1 Pack

ASPECTEK Yard sentinel ultrasonic animal repeller works great Against cats and birds. That’s all I’ve tried it on. I basically purchased it because I wanted to keep the cats away from spraying. And it’s working great.

After 3 months the high pitch sound doesn't work any more. The strobe light works and the outside noise.

The device works well but the back panel is very hard to get back in. It must be perfectly aligned and takes a lot of hand strength to press back together. I think the plug to the item should be outside the box. Otherwise item works well.

We had a family of raccoons make a home in our pool shed (mom and babies). A local raccoon exterminator said they would have to kill the family at a cost of $500. This has a raccoon setting and after a week, they had all left. I feel bad we tortured them with the strobe lights and awful noise, but hopefully they found a better home!

This device does function as advertised in the sense that it wasn't defective and it operated nearly continuously for three weeks straight until I stopped it, which surprised me. I used it in a sort of off-label manner however: I put it underneath my house set on continuous noise since there was already a raccoon living under there, and combined it with spraying coyote urine. I had hoped this would encourage the raccoon to find some other digs, but the high-pitched noise, bird-of-prey screeches, and strobe light merely turned my crawlspace into a critter discotheque. If a raccoon can live for three weeks with that constant noise, then I doubt it would actually repel one if used as suggested, as a yard deterrent. It should also be noted that I had some rodents enter the crawlspace during this period (and meet their doom as I control them via other means), so that's a double failure of this noisemaker.

I have used unit for six (6) months and have seen 90% reduction in Squirrels in back yard and no damage to fescue grass. The back cover is difficult to take off and put back on. Overall, very surprised unit has worked this well in my yard!

Received this unit just a few days ago. After reviewing the instructions I attempted to remove the back cover panel — INSANE . They designed it to compress outside the edge of main body. It required nearly enough force to damage the unit to pry it off. That’s the easy part. After you install batteries and set the settings you have to put this back plate back on. I’m a pretty strong guy - impossible. Even if you get it reattached it will not stay. Why on earth did they not just use some screws to hold the back on…..nope….. I can’t be the only buyer who has wrestled with this. On the good side — I believe the electronics are quality and you have good adjustments. You can also connect to a 115 v power supply so batteries are not a concern (if you have that option). This occurred the second night it was installed. I have a Ring camera that can see the area where this pest device is installed. Last night both a skunk and a possum walked right up to the pest repeller and sniffed it then TOTALLY ignored it. It only made them curious. This is absolutely the truth. Worthless. Making this worse …… I just discovered a mouse chewed through the extension wire. Serious.

The AC adapter included is UL; this matters with outdoor use, where a cheap adapter can kill you. I bought the 12v cord for it and measured current draw when connected to a car battery. My strobe model draws around 20ma at idle, and around 200ma when tripped. It has 3 potentiometers and (2) 3-position switches that can be set for many conditions; they are the key to making it suit your uses. It accepts 12vdc directly to the jack where you plug in its AC adapter. I have not yet deployed it outdoors, but I am sure it will do the job. It can detect small field mouse size up to a human. It all depends on how you set it up. It automatically resets after tripping, much like a car burglar alarm.

I installed on the undersurface of my balconey directly overlooking the rooftop of my SUV. The idea was to discourage dogs from jumping on the the car’s bonnet or peeing on the wheels. Despite the settings adjusted on the dial for cats and dogs and continuous mode selected (only ultrasound, did not turn on the volume up for sonic to avoid disturbing neighbours), cats and dogs don’t seem to acknowledge or mind its presence as they merrily do what they had been doing before. Waste of Rs 10 grands

Keeps the rats away and the neighbors too!

Deterrent didn’t stop birds. Back panel tight to be waterproof but couldn’t get it to snap in place

Dint work on dogs and cats

It does not work as suggested by the product. The birds still come and sit close by and on top of it.