This unit is made up of 2 parts as you can see. The smaller part which you plug in to a outlet inside your house This is the Transmitter. The larger part is the receiver. Once you plug in the transmitter you can then scan all the circuit breakers within your power panel. As you can down through all the breakers the one that is connected to the outlet in the house will be transmitting and when the receiver unit passes over that breaker it will receive the tone and light up indicating that this circuit breaker is associated with the outlet inside your home. Some times you will get false indications so you should double check the operation if you are unsure. After finding the correct breaker you can then switch off that breaker and then check the outlet in the house and verify that it is no longer hot (powered)

can this item find the breaker if the power is off

No the transmitter needs the power from the outlet to send the signal down the line. The transmitter is the device you plug into the outlet.

Does the plug in part have an indicator light on it to confirm its operational and that the outlet is live?

Yes there is a red light that comes on when the plug is plugged into a live outlet.

Can i plug it in and see what Outlets are on that circuit breaker can I use the finder down the line at the different outlets on that breaker to trace

Your question is unclear, but I think you want to use it backwards. The unit has a transmitter, which you connect at an outlet (via duplex plug, clipleads, or standard light-bulb-socket adapter). Then at the service panel, you run the receiver down the circuit breakers, and it tells you (most of the time) which CB feeds that outlet. It does not allow you to select a CB and then use the device somehow to find all outlets that CB feeds. (I would love that feature as well.)

Brand	KLEIN TOOLS
Power Source	Battery Powered
Style	Circuit Breaker Finder
Color	Original Version
Item Weight	3.2 Ounces
Item dimensions L x W x H	0.5 inches
Min. Operating Voltage	90 Volts
Measurement Type	Voltmeter
UPC	745654152797 635665195107 757073227468 785533725513 696504812708 787721821755 092644693021 640025709528 756635040002 733353249337
Manufacturer	Klein Tools
Global Trade Identification Number	00092644693021
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).

Klein Tools ET300 Circuit Breaker Finder, Finds Electrical Circuit Breaker of 120V Standard Electrical Outlet

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