The whole kit
Receiver, plug-in transmitter and the zip case they travel in.
Breaker finder · Outlet tester · US plug
Circuit Breaker Finder and Outlet Tester
Plug the transmitter into a live outlet, walk to the panel, and sweep the receiver over the breakers. It signals at the one that feeds that outlet, so you do not have to flip breakers one by one while someone shouts from the other room. The transmitter also checks the outlet's wiring on three lights. Read this first: the finder only tells you which breaker to switch off. Before you touch any wiring, confirm the circuit is dead with a voltage tester.
What you get
Breaker finder kit, US plug
$94.95
Bought as singles:
Receiver with flashlight, plug-in transmitter and outlet tester, zip case. Add your own 9V battery.Sold out
Receiver with flashlight, plug-in transmitter and outlet tester, zip case. Add your own 9V battery.
One kit: the receiver, the plug-in transmitter with a US 3-prong plug, and the zip case shown in the maker's photo. The receiver needs one 9V battery, which is not included.
Breaker finder kit, US plug
Total $94.95
- Free US shipping from $49
- 30-day returns on unused items
- Delivery in 7–15 business days
Find the breaker without the guessing
Which breaker feeds this outlet?
Panel labels are often wrong, faded or missing. Plug the transmitter into the outlet, sweep the receiver over the panel, and it signals at the breaker carrying the transmitter's tone. The receiver has its own flashlight, because panels tend to live in dark corners.
- Plug-in transmitter
- Receiver with flashlight
- Outlet wiring check
Two pieces, two jobs
One sends a tone down the wire. The other listens for it.
The transmitter plugs into the outlet and puts a signal on that circuit. The receiver picks the signal up at the panel. A slide switch on the transmitter changes it from Breaker Find to Socket Test, where its three lights report how the outlet is wired.
Sets its own sensitivity
The maker says the receiver adjusts its sensitivity automatically, so there is no dial to turn while you sweep the panel.
A flashlight in the tip
The receiver has a small light at the front for basements, closets and garages where the panel is hard to read.
Three lights for the outlet
In Socket Test the lights show one of the conditions on the chart: correct, open ground, open live, open neutral, live and ground reversed, or live and neutral reversed.
Low-battery warning
The receiver warns you when its 9V battery is running down, according to the maker.
The chart on the transmitter is the maker's own. A three-light tester cannot detect every wiring fault.
The specifics
Straight answers
Every figure here is the maker's own. Where the label on the unit and the written listing disagree, we print both rather than pick one.
9V*
receiver battery
One 9V block. Not included.
3
outlet lights
On the transmitter, read against the chart.
7
conditions on the chart
One correct, six wiring faults.
≈7.8in*
receiver length
198 mm on the maker's drawing.
* Marked figures are the maker's own and are not measured by us.
Full specifications
A plug-in transmitter and a handheld receiver for tracing an outlet back to its breaker, with a three-light outlet wiring check.
- What it is
- A circuit breaker finder with a built-in three-light outlet tester. Two pieces: a plug-in transmitter and a handheld receiver.
- Model marking
- MS5902-T on the transmitter. Its label calls the receiver MS5902R.
- Plug
- US 3-prong (grounded). The maker also makes UK and EU versions. We sell the US one only.
- Transmitter power
- From the outlet it is plugged into. The label on the unit reads 110V-250VAC 50/60Hz. The written listing says "AC 220V 50Hz" instead. We print both; a US outlet is inside the range on the label.
- Receiver power
- One 9V battery, not included. With a low-battery warning, per the maker.
- Sensitivity
- Adjusts automatically, per the maker. No range or accuracy figure is published.
- Outlet conditions shown
- Correct, open ground, open live, open neutral, live/ground reversed, live/neutral reversed, live/ground reversed with missing ground. As printed on the transmitter. "Live" is the hot wire.
- Flashlight
- In the tip of the receiver. No brightness figure is published.
- Size
- Receiver 198 x 40 x 50 mm (7.8 x 1.6 x 2.0 in). Transmitter 70 x 63 mm (2.8 x 2.5 in) across its face. From the maker's drawing. Its written listing gives 195 mm for the long piece and 55 mm for the depth of the transmitter.
- Not included
- 9V battery. No GFCI trip button is shown on the unit.
In the package
- 1 receiver with flashlight
- 1 plug-in transmitter / outlet tester, US plug
- 1 zip case, as shown in the maker's photo
The 9V battery for the receiver is not included. The maker does not print a contents list; the zip case is the one shown in its photo.
A closer look
What is in the kit.
Two working pieces and a zip case.
The receiver
The wand you take to the panel: sensor tip, signal lights, one button.
The transmitter
Three lights, the wiring chart, and the Breaker Find / Socket Test switch.
In use
Flashlight in the tip. The outlet pictured is not a US one.
How to use it
Plug in, sweep the panel, switch off, then verify.
-
Plug in the transmitter
Set the switch to Breaker Find and plug the transmitter into the outlet you want to trace. To check the outlet's wiring first, slide it to Socket Test and read the three lights against the chart.
-
Sweep the panel
Put a 9V battery in the receiver, switch it on and run the tip slowly down the row of breakers. The sound changes as the signal gets stronger or weaker, and the maker says a continuous beep marks the target breaker. Go over the whole panel once, then again more slowly.
-
Switch off and verify
Switch that breaker off. The lights on the transmitter should go out. Then confirm with a voltage tester before you do any work on the circuit.
The outlet has to be live for the finder to work, so a dead outlet cannot be traced this way. And however clear the signal is, treat the circuit as live until a voltage tester says otherwise.
Compared with the usual options
Breaker finder, flipping breakers, or trusting the panel labels?
Three ways to find the right breaker. Here is where this one wins and where it does not.
| Feature | This breaker finder | Flipping breakers one by one | Panel labels |
|---|---|---|---|
| Works alone, no helper at the outlet | |||
| Leaves the rest of the house powered while you look | |||
| Does not depend on someone's old handwriting | |||
| Also checks how the outlet is wired | |||
| Works on a dead outlet | |||
| Needs nothing extra | 9V battery |
Compared by type of tool, not by brand.
Free shipping on orders of $49 or more. Below that, standard shipping is a flat $4.95 to any of the 50 US states. Delivery takes 7–15 business days from the time you order, and that window already includes the 1–2 business days we take to process. Shipping & Delivery.
30-day returns. Items must be unused and in their original packaging. Email support@nexuratool.com with your order number to start a return. Returns & Refunds.
30 days from delivery. Email support@nexuratool.com with your order number and what you want to return. We reply with a return address — do not send anything back before you have it, or we cannot match the parcel to your order.
What we can take back: unused items in their original, undamaged packaging. Adhesives, sealants and lubricants cannot be returned once opened; the same goes for any item with a broken safety seal. That is a safety and hazardous-goods rule, not a preference.
Who pays: return shipping is paid by you, except when the item arrived damaged, faulty or was not what you ordered — then we cover it and refund the original shipping too.
Refunds go back to the original payment method within 5 business days of the return reaching us. Full returns policy.
QUESTIONS PEOPLE ASK
Before you order
Will it work on US household outlets?
What is in the kit?
Does the outlet need to be live?
Is it safe to work on the circuit once I have switched the breaker off?
The receiver signals on more than one breaker. What now?
What do the three lights on the transmitter mean?
Does it test GFCI outlets?
How long does delivery take, and can I return it?
Breaker finder · Outlet tester · US plug
Find the right breaker the first time.
A plug-in transmitter and a receiver with a flashlight, in a zip case. Free US shipping from $49, and 30 days to return it unused.