You're right to be skeptical. Most ultrasonic devices on Amazon fail for one reason: they emit a single fixed frequency, and rodents adapt to it in 3 to 5 days. Wave Guard solves this with a dual-frequency rotation system that cycles through 23 different frequencies between 25kHz and 65kHz. Pests can't adapt to a signal that keeps changing. This is the same principle used in industrial pest control for warehouses, restaurants and food storage facilities, now miniaturized for home use.

Most customers notice a clear reduction in activity within the first 7 days. Here's what to expect:

• Day 1-3: Pests become agitated. You may briefly hear more activity as they panic and search for an exit.
• Day 4-7: Activity drops noticeably. Fewer droppings, less scratching, less scurrying.
• Day 8-14: Complete relocation. Pests abandon the area.
• Day 15 onward: Wave Guard runs 24/7 to keep them from coming back.

If you don't see results by day 90, we'll refund every dollar.

No. Dogs hear up to 45kHz and cats up to 64kHz. Wave Guard operates between 65kHz and 90kHz, which is above the hearing range of common household pets. Hamsters, rabbits and guinea pigs are sensitive to ultrasonic frequencies, so we recommend placing Wave Guard in a different room than their cages. Fish, reptiles and birds are unaffected.

Yes, completely. Wave Guard emits no chemicals, no scent, no spray, no residue. The ultrasonic frequency it produces is above the human hearing range (20kHz max), which means neither adults nor babies can hear it. There's nothing to ingest, nothing to touch, nothing to clean. It's the safest pest control option for households with kids.

Wave Guard is effective against:

• Rodents: mice, rats, squirrels
• Insects: cockroaches, spiders, ants, fleas, silverfish
• Other pests: bats, certain types of beetles

It's less effective against bedbugs and termites, which are not driven by ultrasonic frequency. For those, traditional treatment is still recommended..

Each Wave Guard covers up to 1,200 sq ft, but ultrasonic waves don't pass through walls. So the rule of thumb is:

• 1 unit: small apartment, single room, RV, garage
• 2-3 units: average 2-3 bedroom home
• 4-6 units: large home with basement, multiple floors, or outbuildings
• 6+ units: farms, barns, commercial spaces

Most customers start with 3. If you're buying for a multi-floor home, our 3-pack and 6-pack bundles save you up to 40%.

Almost none. Wave Guard draws less than 5 watts, similar to a phone charger left plugged in. Running it 24/7 for a year costs less than $4 on average US electricity rates. Over its 5-year lifespan, that's roughly $20 in total electricity, while saving you from $400+ exterminator visits.

No. The frequency Wave Guard emits is ultrasonic, which by definition is above human hearing. You won't hear humming, buzzing, or clicking. You can leave it plugged in 24/7 in your bedroom and sleep normally.

Plug Wave Guard into a standard wall outlet at least 8 inches above the floor (not behind furniture or curtains that block the waves). For best results:

• Kitchen, near pantry or under-sink areas
• Basements and garages
• Attics or crawl spaces with an accessible outlet
• Living rooms or hallways near suspected entry points

Avoid placing it inside cabinets or behind large furniture, since solid objects absorb ultrasonic waves.

Yes. Wave Guard works anywhere there's a standard outlet. It's especially effective in basements, garages, RVs, sheds and cabins, which are common entry points for rodents. For outdoor structures, make sure the unit is sheltered from rain (Wave Guard is not waterproof).

Each Wave Guard unit is built to run continuously for 5 years. There are no batteries to replace, no refills to buy, no filters to clean. Just plug it in and forget it exists. Over 5 years, that works out to roughly $0.48 per month of protection.

We offer a 90-day money-back guarantee. If for any reason Wave Guard doesn't work in your home, email us at support@waveguardhome.com and we'll refund every dollar. No return shipping required. No questions asked. You keep the units.

We can afford to make this promise because the vast majority of our customers see results within 2 weeks.

Because we sell directly from the manufacturer to you, with no retailer markup, no distributor margins, and no traditional advertising costs. A comparable industrial-grade ultrasonic device sold through a pest control company can cost $200-400 for the same coverage. By cutting out the middle layers and selling direct online, we deliver the same technology for $29.99

Yes. Every Wave Guard comes with a 1-year manufacturer warranty against defects. If your unit stops working within 12 months of purchase, contact us and we'll send a free replacement.