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Klein Tools RT310 Outlet Tester, AFCI and GFCI Receptacle Tester for North American AC Electrical Outlets

Klein Tools RT310 Outlet Tester, AFCI and GFCI Receptacle Tester for North American AC Electrical Outlets

Q: does this actually place a load on the circuit for for voltage drop?

It simulates a 12,15, and 20 amp load and displays the percentage drop, according to the operating instructions.

Q: Will this indicate open neutral or open ground when circuit is not energized?

Way late on answer this. If you’re talking about (Klein Tools RT210 Outlet Tester) then no, it has to have power on the circuit as this is not battery powered to show the tester how it’s wired.

Q: Does this simulate and test both serial and parallel arc fault conditions?

This tester plugs into an outlet on the circuit under test, so it seems to me that automatically makes it a parallel device. Therefore it can only simulate an arc fault such as might occur in a parallel device, i.e. what you normally plug into an outlet. (A typical faulty item being be a lamp with a frayed power cord.) I believe the tester would have to be wired into the circuit in series to simulate a serial arc fault. I don't know the nature of the tester's design but it may be that tripping an AFCI unit (an AFCI outlet, for instance) with a parallel fault simulation may also prove the AFCI's ability to respond to a serial arc fault, at least in part. Disclaimer: I'm not an electrician or EE so you may want to dig farther on this subject, but I believe I have the basics right.

Q: Does this protect trip a gfci protected receptacle with an open ground?

No it will not. No tester will trip a GFCI with open ground. You have to use the button on the receptacle/breaker in that case. Make sure the outlet is labeled with "no equipment ground."

Product ID: 117479776

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Details

Brand
KLEIN TOOLS
Power Source
Battery
Style
Standard
Color
Multi
Item Weight
8.5 Ounces

⚡120V AC testing power

🔄Simulates arc & ground faults

🔌10-inch flexible cord

Frequently Bought Together

Klein Tools RT310 Outlet Tester, AFCI and GFCI Receptacle Tester for North American AC Electrical Outlets

Klein Tools RT250 GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles

Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with Integrated GFCI Outlet Tester

Description

🔧 Power up your safety game with Klein’s ultimate outlet tester!

FLEXIBLE REACH - 10-inch cord lets you test hard-to-access outlets without hassle.
CLEAR VISUAL FEEDBACK - Instant, easy-to-read LED indicators eliminate guesswork on wiring status.
BUILT FOR NORTH AMERICA - Designed specifically for 120V grounded outlets, ensuring perfect compatibility.
SIMULATED FAULT TESTING - Accurately replicates arc and ground fault conditions for reliable troubleshooting.
ALL IN ONE FAULT DETECTION - Detects wiring, AFCI, GFCI, and dual-open faults with patent-pending precision.

The Klein Tools RT310 is a professional-grade outlet tester engineered for North American 120V AC circuits. It combines comprehensive wiring fault detection—including AFCI, GFCI, and dual-open wiring faults—with simulated arc and ground fault testing. Featuring a 10-inch flexible cord and clear visual indicators, it ensures precise diagnostics even in hard-to-reach locations. Battery-powered and ETL certified, this compact tool is essential for electricians and savvy professionals committed to electrical safety and compliance.

Specifications

Brand	KLEIN TOOLS
Power Source	Battery Powered
Style	Standard Receptacle Tester
Color	Multi
Item Weight	8.5 Ounces
Item dimensions L x W x H	18.53 x 2.37 x 1.28 inches
Min. Operating Voltage	120 Volts (AC)
Specification Met	ETL
UPC	092644691829
Manufacturer	Klein Tools
Global Trade Identification Number	00092644691829
Part Number	RT310
Item Weight	8.5 ounces
Product Dimensions	18.53 x 2.37 x 1.28 inches
Item model number	RT310
Batteries	3 AAA batteries required. (included)
Is Discontinued By Manufacturer	No
Size	One Size
Finish	Brushed
Material	PC/ABS Housing with Electronic Components
Pattern	Tester
Shape	Rectangular
Item Package Quantity	1
Special Features	Tests AFCI and GFCI, Simulates Ground Fault and Arc Flash Conditions, Detects Dual-Open Wiring Fault
Included Components	3 x 1.5V AAA Alkaline Batteries
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Description Pile	3 x AAA

Have a Question? See What Others Asked

does this actually place a load on the circuit for for voltage drop?

Will this indicate open neutral or open ground when circuit is not energized?

Does this simulate and test both serial and parallel arc fault conditions?

Does this protect trip a gfci protected receptacle with an open ground?

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