Review · Gadgets
Nixo Pest review: the plug-in repeller with a signal that keeps changing
Does the Nixo plug-in repeller really make mice and roaches move out?
Nixo is a small plug-in unit that sends out ultrasonic and "bionic" pulses people can't hear, and its pitch is that the pattern keeps changing so pests can't get used to it. The research on ultrasonic repellers is mixed: some tests found no effect, and one long home test found far fewer mice with a unit running. One Nixo costs $29.99; three cost $69.98, with 90 days to ask for a refund. Below: which bundle fits your home, and how to give it a fair test.
- Plugs into any wall outlet; a blue light shows it's on
- Ultrasonic plus "bionic" pulses that keep changing pattern
- No sprays, poison, traps or dead pests to clean up
- From $29.99, or 3 units for $69.98; 90-day refund
This review is based on Nixo's product page and order page (checked on Nov 12, 2026), the photos and customer stories shown there, and the government and university pages linked in the sources. Features and claims are as Nixo describes them. We have not tested Nixo in a home. How we review
Why are so many people done with sprays, traps and the exterminator?
It's 11 p.m. You flip on the kitchen light for a glass of water, and something dark runs under the fridge. Or it's the scratching inside the wall above the bed, the one that starts right when the house goes quiet.
So you do what everyone does. A can of spray under the sink. Snap traps behind the stove, which means checking them every morning. Maybe a pest service that comes back every few months and sends a bill each time. With kids crawling on the floor or a dog that sniffs every corner, every one of those options comes with a worry.
That's the itch Nixo scratches: a device you plug in once and then stop thinking about. No poison on the floor, nothing to check, nothing to throw out. The question is whether sound alone can do the job. That's what the rest of this review answers.
What is Nixo, and how is it supposed to work?
Nixo is a palm-sized white unit with a power button and a blue light. You plug it into a wall outlet, press the button, and it runs day and night. There's no app, no settings and no refills.
Here's the idea that sets it apart, in Nixo's own words. Most plug-in repellers send "one steady tone", and "a signal that never changes turns into background noise" that pests can learn to ignore. Nixo "layers ultrasonic and bionic-frequency signals and keeps changing how they combine, so there's no fixed rhythm to adapt to." The sound sits above what people hear, so you shouldn't notice it.
On paper, one unit covers up to 1,600 sq ft, and the page says the signal reaches pests behind walls, under cabinets and inside furniture. Nixo lists mice, rats and cockroaches as its main targets, and its customer stories add spiders and ants. The unit is listed to last up to 5 years and doesn't interfere with Wi-Fi or electronics.
The changing signal is the part to remember. It's Nixo's answer to the biggest complaint about older repellers, and the research below puts it to the test.
The 3-unit bundle covers three floors or problem rooms for about $23 each.
Do ultrasonic pest repellers actually work?
The honest answer: the research is mixed, and nobody has published a test of Nixo itself. Here's what the independent sources say.
- The skeptical side. In 2001 federal regulators at the Federal Trade Commission (FTC) sent warning letters to more than 60 sellers of ultrasonic pest devices, telling them that claims need "competent and reliable scientific evidence", as the Iowa State University Extension reported, quoting the FTC release [1]. A 2016 review by the New York State IPM Program at Cornell found studies with "no effect" on German cockroaches, bed bugs and rodents [2].
- The hopeful side. A home study in the Proceedings of the Vertebrate Pest Conference (2018) ran one ultrasonic unit in an old farmhouse over several years. With the unit on, 9 mice were caught; with it off, 91 [3]. It was one house, a different brand, and snap traps ran the whole time, so it shows what's possible, not a promise.
- Who checks the claims. The EPA doesn't register repellers like Nixo the way it registers pesticides, and says the companies selling them must keep the data behind their claims [4].
Where does Nixo fit? The 2018 study shows a repeller can help in a real home when it's paired with traps, and Nixo's changing signal is designed to keep pests from tuning it out. Whether it does in your home is what the 90-day refund lets you find out. The CDC adds the part no device does for you: fill small holes with steel wool and caulk, and keep food in containers with tight lids [5].
Nixo vs sprays, traps and a pest service: which makes sense?
Nixo's pitch rests on cost and hassle, so here they are side by side. The yearly costs are the ones on Nixo's comparison chart; for Nixo, that's the price of one unit, which is listed to last up to 5 years.
| Nixo | Bug sprays | Snap traps | Pest service | |
|---|---|---|---|---|
| Cost per year | Under $35 per unit | $240+ | $120+ | $2,000+ |
| Chemicals in the house | None | Yes | None | Usually |
| Something to check or clean up | No | Residue | Dead pests | Visits |
| Works while you sleep | Yes, 24/7 | Until it wears off | Yes | Between visits |
| Independent proof | Mixed for repellers | Registered products | Widely used | Depends on the company |
What does Nixo look like in a real home?
These are the product photos from Nixo's page. They show the size (it fits in one hand), the blue light that tells you it's on, and how the coverage is meant to work: one unit per floor, or one for every 1,600 sq ft.
What are the pros and cons of Nixo?
Weighing Nixo's page against the independent sources, the good is real and the bad is mostly about proof.
Pros
- No poison, sprays or traps: nothing for kids or pets to touch
- A changing signal, built to avoid the habit problem of one-tone repellers
- Plug in, press a button, done: no app, no refills
- Up to 1,600 sq ft per unit, listed to last up to 5 years
- 90 days to ask for a refund, so you can test it in your own home
Cons
- No published test of Nixo itself, and the research on repellers is mixed
- Not for homes with pet hamsters, guinea pigs, rabbits, rats or mice
- The page doesn't spell out who pays to ship a return
What do buyers say on Nixo's page?
Nixo's page shows eight customer stories, each with a photo of the unit at home. Here they are, word for word.
I was paying $600 every quarter for an exterminator. Plugged this in and within two weeks, every single roach was gone. Cancelled my pest service and have not looked back. Best investment ever.
Jason R.
The first night I plugged it in, I saw roaches fleeing from behind the refrigerator. Within a week, nothing. Complete silence. No chemicals, no mess, no smell. This thing actually works.
Michelle T.
I was worried about my cats, but they are completely unaffected. The frequencies are designed for pest nervous systems only. Meanwhile, the ants and spiders that were everywhere are completely gone. Chemical-free peace of mind.
Natalie F.
I was paying for quarterly exterminator visits that never lasted. This one device replaced all of it. Plugged it in, pests disappeared, and they have not come back. Pays for itself instantly.
Tom H.
I only bought one unit for my kitchen, but it cleared the kitchen, dining room, and living room all at once. The 1,600 sq ft coverage is no joke. Considering getting a second one for the basement.
David P.
I originally got this for a roach problem, but I noticed the spiders are gone too. And the ants. Basically every pest in my house vanished within two weeks. Was not expecting that kind of full coverage.
Rachel W.
We had mice in the walls for years. You could hear them scratching at night. Plugged this in and within a week, silence. Three months later, still completely gone. This thing reaches where traps never could.
Greg B.
Simple plug and play. No setup, no batteries, no refills. Just plug it in and it works 24/7. For under $40, this is the best home investment I have made. My entire house is pest-free.
Linda M.
Is Nixo right for your home, or should you skip it?
Buy Nixo if:
- You have mice or roaches and want to try a no-poison option before calling a pest service.
- Kids, dogs or cats share the floor, and sprays and snap traps make you nervous. One note: Nixo's FAQ says it's safe for dogs and cats, but we found no independent test on them, so watch your pet for the first few days and unplug the unit in that room if it seems bothered.
- You'd rather plug something in once than check traps every morning.
- You're ready to give it a fair test: one unit per problem area, gaps sealed, food stored tight, for a few weeks.
Skip Nixo if:
- You keep hamsters, guinea pigs, rabbits, pet rats or pet mice. Nixo's own FAQ says the units aren't safe for them.
- You have a large infestation, droppings everywhere or damage to wiring. That's a job for a professional, today.
- You want lab-tested proof for this exact device before you spend anything. It hasn't been published.
For most people in between, the 3-unit bundle and the 90-day window make it a low-risk test.
How much does Nixo cost, and which bundle should you pick?
One Nixo costs $29.99 plus shipping. Three cost $69.98, about $23 each, and five cost $104.97, about $21 each. The two bigger bundles ship free. The "buy 2, get 1" and "buy 3, get 2" labels are counted from a $34.99 list price, which is why they don't match two or three times $29.99.
Which one to pick: Nixo says one unit per floor or per 1,600 sq ft, and to start where you've seen the most activity. Most homes have more than one trouble spot (kitchen, garage, basement), so 3 units is the sensible start. The 5-unit bundle fits a two-story house with a garage, or a home where you'd like overlap.
3 units (buy 2, get 1)
$69.98 (about $23 each)
Kitchen plus two more problem areas; free shipping.
5 units (buy 3, get 2)
$104.97 (about $21 each)
Lowest price per unit; free shipping.
Can you get your money back if Nixo doesn't work for you?
Yes. Nixo's page says you can try it "for a full 90 days" and send it back within that time "for a full refund". That's long enough for a fair test: give it four to six weeks in place, keep a note of what you see, and decide before day 90.
What the page doesn't say is who pays to send it back, so ask support before you ship it. Orders go out within 24 to 48 hours, and the checkout shows the delivery time and cost for your address.
The page doesn't say whether the 90 days start at purchase or at delivery, so start your test the day it arrives.
Is Nixo legit or a scam?
Nixo is a real product you can order, with a published price and a 90-day refund. We found no complaints about it on the Better Business Bureau (BBB), which has no listing for the brand [6]. The Trustpilot page for nixopest.com didn't load for us on Nov 12, 2026, so we can't report a score from there.
The bigger question is whether Nixo's changing signal delivers in your home. The National Pesticide Information Center says a device must have "scientific data to back up any claims" [7], and that data for Nixo hasn't been made public. So treat it like any repeller: buy it on the official site, where the refund applies, and judge it by what you see.
Nixo Pest FAQ
What is Nixo Pest?
Nixo Pest is a plug-in ultrasonic pest repeller. It sends out ultrasonic and "bionic" pulses, in a pattern that keeps changing, meant to make mice, rats and roaches leave.
Does Nixo Pest really work?
No independent test of Nixo has been published. Studies on ultrasonic repellers are mixed: a 2016 Cornell review found no effect in several tests, and a 2018 home study found far fewer mice with a unit on. The 90-day refund lets you test it at home.
How is Nixo different from other plug-in repellers?
Most repellers send one steady tone. Nixo says it mixes ultrasonic and bionic signals and keeps changing how they combine, so pests have no fixed rhythm to get used to.
Is Nixo safe for kids, dogs and cats?
Nixo's FAQ says yes for children and pets, except rodent pets like hamsters, rats, mice, rabbits and guinea pigs. We found no independent test on dogs and cats, so watch them for the first few days.
Can I hear Nixo?
It's not meant to be heard. Nixo says its signals sit above the range of human hearing, so there's no buzzing or clicking.
How many Nixo units do I need?
Nixo recommends one per floor or one for every 1,600 sq ft, with units at opposite ends of a multi-level home. Most homes start with the 3-unit bundle.
How fast does Nixo work?
Nixo's FAQ says many users see less pest activity in a few days and are pest-free in about a week. Give it a few weeks before you judge it.
How much does Nixo cost?
One unit is $29.99 plus shipping, 3 units are $69.98 and 5 units are $104.97, the last two with free shipping.
Does Nixo come with a guarantee?
Yes, a 90-day money-back guarantee on the official site. The page doesn't say who pays return shipping, so ask support first.
Does Nixo interfere with Wi-Fi or electronics?
Nixo says no: its FAQ says the unit is FCC-compliant and safe for electronics and internet connections.
How long does a Nixo unit last?
Nixo says up to 5 years. As long as the blue light is on, the unit is working, and it's meant to stay plugged in all the time.
Is Nixo Pest a scam?
It's a real product with a published price and a 90-day refund, and we found no BBB complaints. What's missing is a published test of Nixo itself.
Sources
Checked on Nov 12, 2026.
- Iowa State University Extension, Yard and Garden. Ultrasonic Pest Control: Buyer Beware (FTC release of May 3, 2001), 2001. Link
- Frye M. Ultrasonic Devices? Ultra-Ineffective. New York State IPM Program, Cornell University, Aug 16, 2016. Link
- Whitford PC. TRANSONIC PRO Sonic/Ultrasonic Units Reduce Mouse Problems in Home. Proceedings of the Vertebrate Pest Conference 28, 2018. Link
- U.S. Environmental Protection Agency. Pesticide Devices: A Guide for Consumers. Link
- Centers for Disease Control and Prevention. How to Seal Up to Prevent Rodents. Link
- Better Business Bureau. Search results for "Nixo Pest". Link
- National Pesticide Information Center (Oregon State University and U.S. EPA). Pest Control Devices. Link
So, is Nixo worth it?
Yes, as a hands-off, poison-free first step that you judge with your own eyes. The changing signal is Nixo's answer to the main complaint about older repellers, the research is mixed, and the 90-day refund is what makes the test low-risk. Take the 3-unit bundle, cover the kitchen and the other problem rooms, seal the gaps, and decide well before day 90.