This is an AMAZING tool! I just returned the Sherry CS61200P for its inability to isolate the circuit AND giving way too many false positives (see my review on that tool).
This tool (Klein ET300) is a simply, but highly effective tool.
Before I discuss its use, let’s first look at the benefit that we are seeking with a circuit breaker finder: we want it to identify THE circuit breaker in question AND NOT identify ANY others (this is called a “false positive”). In short, with this type of tool, you are seeking CONFIDENCE. This tool delivers.
Thistooldoes that 100% of the time and with ease. It bears repeating to list the instructions explicitly:
1) Plug the “signaling device” into the desired outlet (you can also test lights and wires with adapters).
2) Take the “finder” to your control panel.
3) Starting atone row of breakers at the first one, slide the finder right behind the breaker’s handle with the finder PERPENDICULAR to the breakers.
4) Slide it down that row and do the same for the other row(s).
5) You are doing this for the finder to “learn” the panel. IGNORE any sounds during this part of the test.
6) Then, do steps 3 & 4 AGAIN.
7) During this “slide” the finder WILL locate the ONE breaker in question — with a beep and a large green arrow.
8) If someone is helping you, ask them to watch the red light on the signaling device while you turn the circuit breaker off to confirm that it is the right breaker. It will be.
The accuracy, the ability to not show false positives, the ease of use of this tool just blows me away. It is the FIRST time that I’ve ever used one of these tools with 100% confidence. It is that good!
NOTE: My control panel is a Square D QO panel. I’m assuming that the tool will work similarly on other breakers & panels.
Again, highly recommended, no reservations whatsoever, 100% satisfied.
| Brand | Klein Tools |
|---|---|
| Power Source | Battery Powered |
| Style | Circuit Breaker Finder |
| Color | Original Version |
| Item Weight | 3.2 Ounces |
| Item Dimensions LxWxH | 0.5 inches |
| Manufacturer | Klein Tools |
| Part Number | ET300 |
| Item Weight | 3.2 ounces |
| Item model number | ET300 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | 1 pack |
| Voltage | 120 Volts |
| Item Package Quantity | 1 |
| Measurement Accuracy | not listed |
| Included Components | (1) 9V Transmitter Battery |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Warranty Description | Klein electronic test and measurement devices (and accessories), manufactured and sold for commercial or industrial uses, are warranted to be free from defects in materials and workmanship for two years from the date of purchase (unless otherwise noted on the product packaging). |
