Lentek PR23 Koolatron Pest Control Battery Operated Repeller Automatic 88 dB Dual Ultrasonic Sirens, Led Power Indicator, Audible Test Button, White

I think the rats I had actually liked it, never seemed to deter them at all or perhaps the rats I had were deaf.anyway would not buy again

Very pleased with the pest controle it is doing what it says and keeping those little pests away.

What a total rip off ... a tiny flimsy piece of plastic which appears to have zero effect for which it was purchased. Horribly overpriced and then the added shock of a £17.15 fedex invoice when you’ve already paid for shipping ... my advice ... don’t entertain this item !!!

We've had a rat/mouse (Mickey) in our crawlspace and have had the exterminators out here 3 times since early in December. They will not poison and we don't want them too since we've had a dead rat in enclossed hard to reach vent area before and the smell was awful! Instead the exterminators have done the basics...traps, outdoor food bait stations, and now finally have put better vent "chew proof" screening on all of our vents in the crawlspace walls to exterior. We still heard Mickey rooting around at night until we put this Ultrasonic device in our crawlspace. it is on a concrete slab crawlspace so no water to ruin it.Until the exterminator came to check traps and put this in the crawlspace for us, I turned it on and placed it face down at one of our floor vents to the in ducts crawlspace. Mickey seemed to go crazy as I heard lots of scurrying after I did this. This was also during the day and we rarely heard any sounds from him then.It's been a week and we only heard Mickey for a few seconds on two days and now for 3 days nothing. I believe that the ultrasonic in the crawlspace has really helped!

I live in a manufactured home on a concrete slab with a crawl space underneath. I was hearing random sporadic scratching & scurrying under my bathtub and bathroom floor off and on for weeks, then it became every night & sometimes during the day so I was sure then it was either a mouse or chipmunk/squirrel and it was not going anywhere. I figured before I call someone & spend $ let me try a couple of cheap options first. My grandmother used to use devices like this so i thought I'd try this 1st. I didn't want to put it under the house first just bc it would be easier if I could figure out a way to keep it inside to monitor it & have it still work. Although it said it doesn't work thru walls, I wanted to try maybe thru the floor/bathtub. I found out by accident that it would work inside another way! I had it aimed at the drain in my shower at night to see if that would work - well 1 morning my son turned on the shower & got it soaked & he put it on top of the floor air vent to dry out. While I was outside I heard this ear piercing noise & it was coming from UNDER MY HOUSE! I ran inside & found it was in audible mode bc the batteries were wet & because it was aimed down on top of the floor vent it was echoing thru all the air ducts under the house!!!! I shut it off, took the batteries out, let it dry. Once it dried out, it worked normal again (silently but flashing light every few seconds with small audible beep). I kept it face down on top of the floor vent, hoping it would reverberate thru all the air ducts again and within 2-3 weeks whatever rodent was under there previously was GONE!!!! I have not heard 1 scratch! Not 1 little sound AT ALL SINCE!!!! I keep it face down on the vent & not 1 problem since. I can't believe it actually works AND I am able to keep it inside the house to monitor when it needs the batteries replaced. It has been several months & no issues. For the money and the ease of use, it is beyond well worth it! Beats having to hire someone to go under my house & charge me $$ to eradicate & probably maintenance! I know some people say it didn't work for them & I can imagine it may not work for every situation - I'm sure different factors come into play but for the price and how simple it is, I think it is definitely worth a shot. It definitely took 2-3 weeks for it to drive this pest away so it doesn't work overnight but I have NO COMPLAINTS! I am super happy! If anything changes I will update but as I said it has been several months now & it has remained effective.