Stop paying for power your home wastes.
StopWatt plugs into any outlet and smooths out the unstable current running through your home — the kind that quietly drives up your electric bill every month.
This is the actual device — compact enough to hold in one hand, plugs into any standard outlet. No app, no subscription, no wiring.
Set up takes under a minute.
No electrician, no rewiring, no app to configure. Plug it in and it gets to work.
Plug it into any outlet
Choose an outlet close to your breaker panel for best results — StopWatt fits any standard 110V North American socket.
It reads your home's current
The device continuously monitors the electrical flow moving through your home's wiring.
It smooths out the waste
Unstable, "dirty" current is corrected in real time, so less power is lost as heat and noise before it reaches your appliances.
Shipped from the US. No tariffs, no surprises.
Every StopWatt order ships tariff-free straight from a US warehouse — the price you see at checkout is the price you pay. No customs fees, no hidden charges showing up later.
Get StopWatt — $49
What's actually happening inside your walls
Every home's electrical current fluctuates more than most people realize. Appliances cycling on and off, older wiring, and shared grid load all create small surges and drops — and every one of them costs you money and adds wear to your devices.
StopWatt sits inline with your home's power and applies structure to that chaotic flow, so the electricity reaching your appliances runs cleaner and more efficiently.
- 110V, North American systems
- 1 unit per 800–1,200 sq ft
- UL approved, RoHS compliant
- Works in homes, condos & offices
What StopWatt owners are seeing on their bills
We noticed the difference on our very first bill after installing StopWatt — enough that my wife checked the meter twice. It's stayed consistent every month since.
I started tracking our savings month over month out of curiosity, and the number kept climbing — small at first, then a lot more noticeable by month four.
I went in skeptical about how a small plug-in device could make a real difference. A few months in, the savings on our statements speak for themselves.
We use three — one per main living area. Six months in, we're consistently saving on our monthly bill. An easy call for anyone on the fence.
Fits into the home you already have
No renovation, no new outlets, no visible wiring. StopWatt sits quietly wherever you plug it in — the kitchen, the living room, a home office — and keeps working in the background.
Most owners install their first unit near the breaker panel or the room with the heaviest electronics load, then decide if a second unit makes sense for the rest of the home.
Savings the whole family notices
A lower electric bill isn't just a number on a statement — it's room in the budget for the things that actually matter, from a weekend outing to a few extra dollars in the family piggy bank.
StopWatt works quietly in the background so those savings show up month after month, without anyone having to think about it.
Try it risk-free for 60 days
If StopWatt doesn't make a difference in your home, send it back within 60 days for a full refund — no questions asked. Every unit also ships with a 1-year standard warranty.
Money Back
Warranty
Compliant
Questions homeowners ask before ordering
Will StopWatt work in my state?
Yes. StopWatt is built for standard 110V North American electrical systems and works in all 50 states, including Hawaii and Alaska.
Will it work in my specific home?
StopWatt works in any space with standard household electricity — houses, condos, apartments, offices, and trailers included.
Is it safe to leave plugged in?
Yes. StopWatt is UL approved and RoHS compliant, meeting standard safety certifications for continuous use.
How many units do I need?
We recommend one StopWatt for every 800–1,200 sq ft of space. Installing more than that for the same area won't add further benefit.
Your next bill can look different.
$49 per unit · free shipping on 2 or more · 60-day money-back guarantee
Get StopWatt Now