Setup & usage guide
StopWatt manual
This manual covers everything needed to set up and use StopWatt correctly: unboxing, placement, the indicator light, safety guidance, troubleshooting, storage, and how to use the warranty and return policy if you need it.
By the StopWatt official store teamUpdated
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Quick answer
Plug it directly into a grounded 90V-250V wall outlet near your panel or a major motor-driven appliance, without any extension cord or power strip, and wait a few seconds for the indicator light to turn on. No tools or app are required.
What comes in the box?
- Each retail box contains one StopWatt unit (or more, depending on your bundle) and a quick-start card.
- Inspect the unit for shipping damage before use. Do not use a unit with a cracked casing or exposed internal components.
- No tools, batteries or app download are required to set it up.
How do I set up StopWatt for the first time?
Choose an outlet
Pick a standard grounded wall outlet rated 90V-250V, ideally near your electrical panel or a major motor-driven appliance.
Plug in directly
Insert the unit fully into the wall outlet so the prongs make firm contact. Do not use an extension cord, power strip, or timer between the wall and the unit.
Wait for the indicator light
Allow a few seconds after plugging in for the indicator light to activate, confirming the unit is receiving power.
Repeat per floor or circuit area
If you have more than one unit, distribute them using the placement table below rather than clustering them on a single circuit.
Leave it plugged in continuously
StopWatt is designed for continuous use. There is no on/off switch to manage and no maintenance required.
How many units do I need, and where should I place them?
StopWatt works locally on the circuit it is plugged into, so placement affects how much of your home benefits. Use the table below as a starting point, and see specifications for the technical detail behind the voltage range and coverage.
| Home size / layout | Recommended units | Placement guidance |
|---|---|---|
| Apartment or small home (up to 1,200 sq ft) | 1 unit | Plug into an outlet near the electrical panel or the largest motor-driven appliance (fridge, AC). |
| Medium home (1,200-1,500 sq ft), single floor | 2 units | Place one near the panel and one near a secondary motor load such as a laundry room or workshop. |
| Multi-storey home | 1 unit per floor minimum | Each floor is typically on separate circuits, so a unit on each floor covers more of the wiring. |
| Large home (1,500+ sq ft) | 3 units | Distribute across floors or wings, prioritizing rooms with HVAC equipment, pumps or workshop tools. |
Buying for a multi-unit setup
The 3-unit bundle works out to $35.28 per device ($105.84 total, was $294) and is the most efficient option for multi-storey or larger homes. See bundle pricing for the 1x, 2x and 3x options.
What does the indicator light mean?
| Light behavior | Meaning | Action |
|---|---|---|
| Solid light | Unit is powered and operating normally | No action needed |
| No light | No power reaching the unit, or outlet is dead | Test the outlet with another device; reseat the plug |
| Flickering light | Loose connection or unstable outlet wiring | Try a different outlet; if it persists, contact support |
| Light turns off after working | Possible internal fault or an outlet issue | Unplug, try another outlet; if unresolved, request a replacement |
What are the safety do's and don'ts?
- Do use only on the stated 90V-250V voltage range.
- Do plug directly into a wall outlet, not a power strip.
- Do keep the unit away from water, direct sunlight and extreme heat sources.
- Don't attempt to open, modify or repair the unit yourself.
- Don't use a unit with visible cracks, burn marks or a damaged plug.
- Don't rely on StopWatt as a surge protector, GFCI, or safety device of any kind — it performs power-factor correction only.
How do I troubleshoot common issues?
If none of these steps resolve the issue, reach out through the contact page or email support@getstopwatt.net with your order number. For a broader picture of what the device can and cannot do, see does StopWatt really work.
| Symptom | Likely cause | Fix |
|---|---|---|
| Indicator light never turns on | Dead outlet, tripped breaker, or loose plug | Test outlet with a lamp; reset the breaker; reseat the unit |
| Light on but no apparent effect on appliances | Normal — power-factor correction is not always perceptible day to day | No fix needed; track kWh over a full billing cycle to evaluate results |
| Unit feels warm | Normal light warmth during operation | Concerning only if hot to the touch or accompanied by odor — unplug and stop use if so |
| Unit stopped working after months of use | Rare component fault | Contact support; may still qualify for replacement within the return window |
| Breaker trips when plugged in | Outlet or circuit issue unrelated to the unit | Try a different circuit; if breaker still trips, have an electrician inspect that circuit |
How should I store and care for the unit?
- If removing a unit temporarily, store it in a dry location away from extreme temperatures.
- Wipe the casing with a dry cloth only; never submerge or spray liquid cleaner on the unit.
- No maintenance, filters or batteries are required during normal use.
How does the warranty and return process work?
Every order includes a 60-day money-back guarantee on the purchase price. To start a return, contact support with your order number within 60 days of delivery, describe the reason for return, and follow the provided return instructions. Refunds are issued to the original payment method once the return is processed. Full detail is on the warranty and guarantee page and shipping & returns page.
Every order from this official store includes free worldwide shipping and a 60-day money-back guarantee on the purchase price. Ready to try it or add units for a larger home? Buy StopWatt from the official store or check bundle pricing for 2x and 3x savings.
60-Day Money-Back Guarantee
Test StopWatt for a full billing cycle. Return it within 60 days of delivery for a refund of the purchase price.
Issued by the official StopWatt store · Refund of the purchase price
Frequently asked questions
How do I set up StopWatt?
Can I use StopWatt with a power strip or extension cord?
How many units do I need for a two-storey house?
The indicator light is off — is the unit broken?
Is it safe to leave StopWatt plugged in permanently?
How do I return a unit I'm not happy with?
Does StopWatt protect against power surges?
Keep reading on the official StopWatt site
- StopWatt technical specifications
- How StopWatt works
- StopWatt 60-day guarantee and warranty
- StopWatt customer service
- StopWatt price and bundles
- Buy StopWatt from the official store
Ready to order? Buy StopWatt direct or compare StopWatt bundle pricing.
Order direct from the official store
Ready to try StopWatt risk-free?
Pick the bundle that matches your home size, then complete your order securely on this page — no redirects, no account required.
Sizing rule of thumb: one device per 800–1,200 sq ft, so most homes over 1,500 sq ft use the 3-device bundle.
Checkout — 3 Devices
$105.84
- Charged onceOne-time payment, no subscription
- Dispatch1–2 business days, tracked
- 60 daysReturn for a refund, no questions
- Real supportsupport@getstopwatt.net
Prices in USD. The bundle price shown is the full discount — there is no code to hunt for. Add-ons available only here: add 1 extra stopwatt and 3-year replacement protection.