- 110/125 VAC electrical tester works on standard/GFCI receptacles
- GFCI Outlet Tester with LED lights, indicates wiring problems
- Indicates open ground, reverse polarity and other conditions
- See More Details
Frequently Bought Together
Product Overview
GFCI Receptacle Tester
Klein Tools’ Cat. No. RT210 Detects the most common wiring problems in standard and GFCI receptacles
GFCI Receptacle Tester with LCD
Klein Tools’ Cat. No. RT250 is an electrical circuit tester that tests the wiring conditions at an electrical outlet and inspects GFCI devices, and displays the results
AFCI / GFCI Outlet Tester
Klein Tools’ Cat. No. RT310 is an electrical tester that tests the wiring condition at an electrical outlet, and inspects and checks AFCI and GFCI devices
GFI Outlets
The Cat. No. RT210 receptacle tester works on GFI outlets and confirms operation of the ground fault protective device
LCD Readouts
The Cat. No. RT250 tester features LCD readout of voltage, wire fault, and GFCI time to trip breaker
Visual Indicator
The Cat. No. 310 outlet tester tests AFCI devices by simulating arc fault conditions and GFCI devices by simulating ground fault conditions, and delivers clear visual indicating of the wiring condition at the electrical outlet
Durable
All of Klein Tools’ receptacle testers are built tough enough to withstand a 2 meter drop
Quickly Determine Results
A convenient chart on the Cat. No. RT210 tester helps determine wiring condition in outlet, based on LED lights results. Conditions indicated: open ground, reverse polarity, open hot, open neutral, hot/ground reversed.
Nominal Voltage
Klein Tools Cat. No. RT210 tests 110/125V AC at 50/60Hz in 3-wire outlet
Safety
Klein Tools Cat. No. RT250 meets or exceeds CAT II 135V safety rating
Tests
The Cat. No. RT250 Tester is designed to inspect and test GFCI devices for North American 120V electrical outlets and is capable of detecting a dual-open wiring fault with simultaneous open neutral and open ground wires (patent pending technology)
Patent Pending Technology
Klein Tools Cat. No. RT310 tester is capable of detecting a dual-open wiring fault with simultaneous open neutral and open ground wires (patent pending technology)
Safety
Cat. No. RT310 tester meets or exceeds CATIII 135V safety rating, making it applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage MAINS installation
- California residents
- Detects the most common wiring problems in standard and GFCI receptacles
- Works on GFI outlets and confirms operation of the ground fault protective device
- Built to withstand a 6.6-foot (2m) drop
- Operating temp: 32-Degree to 140-Degree Fahrenheit (0-Degree to 40-Degree Celsius)
- Nominal Voltage: 110/125V AC at 50/60Hz in 3-wire outlet
- Note: product may vary by store
- Shop all Klein Tools electrical testers here
- Click here for more information on Electronic Recycling Programs
Info & Guides
Product Overview
- 110/125 VAC electrical tester works on standard/GFCI receptacles
- GFCI Outlet Tester with LED lights, indicates wiring problems
- Indicates open ground, reverse polarity and other conditions
Compare Similar Specialty Meters
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| Brand | Gardner Bender | Klein Tools | Klein Tools | Sperry |
| Name | 120 VAC Outlet Tester | GFCI Receptacle Tester | Test Lead Set | Stop Shock 2 GFCI Outlet Tester |
| Price | $589 | $997 | $1499 | $1577 |
| Ratings | (120) | (113) | (140) | (19) |
| Test Meter Type | Specialty Meter/Tester | Specialty Meter/Tester | Specialty Meter/Tester | Specialty Meter/Tester |
| Control Type | Manual/Analog | Manual/Analog | Manual/Analog | Manual/Analog |
| View Product | View Product | View Product | View Product |
Compare Similar Specialty Meters
| | | | |
| Brand | Gardner Bender | Klein Tools | Klein Tools | Sperry |
| Name | 120 VAC Outlet Tester | GFCI Receptacle Tester | Test Lead Set | Stop Shock 2 GFCI Outlet Tester |
| Price | $589 | $997 | $1499 | $1577 |
| Ratings | (120) | (113) | (140) | (19) |
| Test Meter Type | ||||
| Control Type | ||||
| View Product | View Product | View Product | View Product |
Key Features
GFCI Receptacle Tester
Klein Tools’ Cat. No. RT210 Detects the most common wiring problems in standard and GFCI receptacles
GFCI Receptacle Tester with LCD
Klein Tools’ Cat. No. RT250 is an electrical circuit tester that tests the wiring conditions at an electrical outlet and inspects GFCI devices, and displays the results
AFCI / GFCI Outlet Tester
Klein Tools’ Cat. No. RT310 is an electrical tester that tests the wiring condition at an electrical outlet, and inspects and checks AFCI and GFCI devices
GFI Outlets
The Cat. No. RT210 receptacle tester works on GFI outlets and confirms operation of the ground fault protective device
LCD Readouts
The Cat. No. RT250 tester features LCD readout of voltage, wire fault, and GFCI time to trip breaker
Visual Indicator
The Cat. No. 310 outlet tester tests AFCI devices by simulating arc fault conditions and GFCI devices by simulating ground fault conditions, and delivers clear visual indicating of the wiring condition at the electrical outlet
Durable
All of Klein Tools’ receptacle testers are built tough enough to withstand a 2 meter drop
Quickly Determine Results
A convenient chart on the Cat. No. RT210 tester helps determine wiring condition in outlet, based on LED lights results. Conditions indicated: open ground, reverse polarity, open hot, open neutral, hot/ground reversed.
Nominal Voltage
Klein Tools Cat. No. RT210 tests 110/125V AC at 50/60Hz in 3-wire outlet
Safety
Klein Tools Cat. No. RT250 meets or exceeds CAT II 135V safety rating
Tests
The Cat. No. RT250 Tester is designed to inspect and test GFCI devices for North American 120V electrical outlets and is capable of detecting a dual-open wiring fault with simultaneous open neutral and open ground wires (patent pending technology)
Patent Pending Technology
Klein Tools Cat. No. RT310 tester is capable of detecting a dual-open wiring fault with simultaneous open neutral and open ground wires (patent pending technology)
Safety
Cat. No. RT310 tester meets or exceeds CATIII 135V safety rating, making it applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage MAINS installation
Specifications
Dimensions
Details
Warranty / Certifications
Questions & Answers
What is the difference between the RT210 model and the RT110 model?
Asked by Josh September 6, 2019I believe one has the ability to test a gfi and one does not, meaning one can test to make sure the gfi out will trip via the button on top of the plug tester.
Does this work on two wire systems with standard outlets?
Asked by Chas December 26, 2016Nope you have to have 3 prongs receptacle in order to test otherwise tester will show open ground
Where is it made?
Asked by Inquisitive March 31, 2016China. All electronics these days are made pretty much in China, from name brand electric tools to really cheap battery powered items. It is all about the companies profit margin on their products and the share holder returns.
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