Klein Tools AFCI GFCI Outlet T...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$111.46
$75.39
Klein Tools AFCI /GFCI Outlet Tester

Klein Tools AFCI GFCI Outlet Tester 120V AC 3-Wire Grounded Electrical Battery Operated Professional Grade

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Model: RT310
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$111.46
$75.39
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Klein Tools AFCI GFCI Outlet Tester 120V AC 3-Wire Grounded Electrical Battery Operated Professional Grade

Professional-Grade Electrical Outlet Testing Equipment

The Klein Tools AFCI GFCI Outlet Tester delivers professional-grade electrical testing performance for comprehensive outlet fault detection and safety verification. This PC/ABS housing electrical tester features patent-pending AFCI test technology designed for electricians, electrical contractors, and maintenance professionals, providing the reliable performance and industry-leading quality that tradesmen demand from America's most trusted electrical tool manufacturer.

Professional Features & Benefits

Advanced Testing Capabilities

  • AFCI Arc Fault Testing - Patent-pending technology simulates arc fault conditions unique to Klein Tools for comprehensive AFCI device verification
  • GFCI Ground Fault Testing - Simulates ground fault conditions to verify proper GFCI device operation and electrical safety
  • Dual-Open Wiring Fault Detection - Patent-pending capability detects simultaneous open neutral and open ground wire conditions
  • Standard Outlet Wiring Verification - Tests most common wiring faults in standard, AFCI, and GFCI electrical outlets with clear visual indication

Professional Durability & Safety

  • CATIII 135V Safety Rating - Professional measurement category III certification for distribution-level electrical testing applications
  • 6.6-Foot Drop Protection - Rugged construction withstands jobsite conditions and accidental drops for long-term reliability
  • 10-Inch Flexible Cord - Extended reach electrical plug accesses outlets in difficult locations and tight spaces

User-Friendly Operation

  • Auto Power-Off Function - Conserves battery life with automatic shutdown after 2 minutes of non-use
  • Low Battery Indicator - Visual alert system ensures reliable operation and prevents unexpected power loss during testing
  • Easy Battery Access - Accessible battery compartment with included 3 x 1.5V AAA alkaline batteries for immediate use

Technical Specifications

Designed for 120V AC 3-wire grounded electrical outlets with North American-style three-pin plug configuration. Overall dimensions: 7.4 inches length x 2.3 inches width x 1.3 inches height. Weight: 8.5 oz with PC/ABS housing construction. CATIII 135V safety rating with 6.6-foot drop protection. Powered by 3 x 1.5V AAA alkaline batteries (included) with low battery indicator and auto power-off after 2 minutes.

Installation & Usage

  1. Verify tester operation on known live and correctly wired receptacle before each use following Klein Tools safety protocols
  2. Insert three-pin plug into 120V AC grounded electrical outlet using 10-inch flexible cord for extended reach
  3. Observe visual indicators to identify wiring condition and fault detection results with Klein Tools precision
  4. Press GFCI test button to simulate ground fault conditions and verify proper GFCI device operation
  5. Press AFCI test button to simulate arc fault conditions using patent-pending Klein Tools technology
  6. Record test results and consult qualified electrician for any detected wiring problems or safety issues

Professional Applications

Ideal for:

  • Electrical Installation - New construction outlet verification, residential wiring inspection, and commercial electrical system testing
  • Maintenance & Troubleshooting - Routine AFCI/GFCI device testing, electrical safety inspections, and preventive maintenance programs
  • Safety Compliance - OSHA electrical safety verification, code compliance testing, and workplace electrical hazard assessment
  • Residential Service - Home electrical inspections, outlet safety verification, and GFCI/AFCI device functionality testing
  • Commercial Applications - Office building electrical testing, retail facility safety inspections, and industrial maintenance programs
  • Educational Facilities - School electrical safety testing, laboratory outlet verification, and campus maintenance operations
  • Healthcare Facilities - Hospital electrical safety compliance, medical equipment outlet testing, and patient care area inspections
  • Industrial Maintenance - Manufacturing facility electrical testing, plant safety inspections, and equipment installation verification

Patent-Pending Technology Advantage

Klein Tools exclusive patent-pending AFCI test method provides unique arc fault simulation capabilities not available in standard outlet testers. This innovative technology combined with dual-open wiring fault detection ensures comprehensive electrical safety verification that meets the demanding requirements of professional electricians and electrical contractors working with modern AFCI and GFCI protection systems.

Why Choose Klein Tools Quality?

Since 1857, Klein Tools has maintained its commitment to electrical safety and professional-grade quality through rigorous testing protocols and innovative engineering. This AFCI/GFCI outlet tester represents Klein Tools' dedication to advancing electrical safety technology while providing the reliable performance and durability that electrical professionals trust for critical safety testing applications in residential, commercial, and industrial environments.



KLN-RT310 - spec sheet

Manufacturer Resources

Product Specs

Afci:
Yes
Application:
RT310 is an electrical outlet tester that tests for wiring faults in electrical outlets, and Tests AFCI and GFCI Devices
Batteries:
3 x AAA
Drop Protection:
6.6' (2 m)
Gfci:
Yes
Included:
Outlet Tester; 3 x 1.5V AAA Alkaline Batteries
Item Depth:
18.5300 in
Item Height:
1.2800 in
Item Weight:
0.4580 lbs
Item Width:
2.3700 in
Overall Height:
1.3" (3.3 cm)
Overall Length:
7.4" (18.8 cm)
Overall Width:
2.3" (5.8 cm)
Standard:
CATIII 135V
Product Type:
AFCI/GFCI Electrical Battery Operated Outlet Tester
Department:
Electrical
Product Group:
Test & Measurement
Product Subgroup:
Electrical Testers
Product Voltage:
120V AC in 3-Wire Grounded Electrical Outlet
Product Details:
AFCI/GFCI Electrical Battery Operated Outlet Tester
Product Material:
PC/ABS Housing with Electronic Components
Product Category:
Combination Testers
Product Weight:
8.5 oz (241 g)

Klein Tools RT310 – Frequently Asked Questions

1) Will the Klein RT310 tester trip an AFCI breaker, or does it only test GFCI outlets?
The RT310 does both. It simulates arc fault conditions using Klein's patent-pending AFCI test method to verify AFCI devices, and it simulates a ground fault to verify GFCI devices. Separate AFCI and GFCI test buttons on the unit handle each. That covers the combination AFCI/GFCI receptacles and breakers common in bedrooms and kitchens on modern residential work.
2) What outlets does the Klein RT310 plug into, and can I use it on 240V circuits?
It is built for 120V AC 3-wire grounded receptacles with the standard North American three-pin plug. It will not go into a 240V receptacle or a two-prong ungrounded outlet. For anything above 120V single phase you need a different instrument.
3) What wiring faults will this Klein tester actually catch?
It identifies the common miswires found in standard, AFCI and GFCI receptacles through its visual indicators, and it adds a patent-pending dual-open detection that flags an open neutral and an open ground occurring at the same time. That simultaneous condition is the one many basic three-light testers read as correct, which is the practical reason to carry this over a plain neon tester.
4) Is the Klein RT310 outlet tester rated CAT III?
CAT III 135V. That is the measurement category for distribution-level work such as panelboards, feeders and branch circuits in a building, which is where receptacle testing happens.
5) Can I reach a receptacle behind a desk or appliance with the RT310?
The plug is on a 10-inch flexible cord rather than being molded into the body, so the head can be worked into a crowded or blocked receptacle while the display stays where you can read it. The body itself is 7.4 inches long, 2.3 inches wide and 1.3 inches high.
6) Does the Klein RT310 need batteries, and are they included?
It runs on 3 x 1.5V AAA alkaline cells, and a set ships in the box along with the tester. There is a low battery indicator, and the unit shuts itself off after 2 minutes of non-use so a tester left in a pouch does not drain. Unlike a passive three-light tester, this one will not perform its AFCI and GFCI simulations without working batteries, so keep spare AAAs on the truck.
7) We do periodic GFCI checks across a property portfolio. Is this the right tool, or do we need something bigger?
For routine receptacle verification across a building, this is the right class of tool. One unit confirms wiring condition, trips GFCI devices and exercises AFCI devices on 120V grounded receptacles, which covers most of what a maintenance round on units, corridors and common areas involves. It does not measure trip time or leakage current in milliamps, so if your inspection program requires recorded trip-time values you need a dedicated GFCI trip-time meter in addition.
8) How rugged is this tester for daily jobsite use?
The housing is PC/ABS with the electronics inside, and it is rated to survive a 6.6 foot (2 m) drop, so a fall off a stepladder or out of a pouch is within spec. At 8.5 oz it rides in a pouch without much weight penalty.
9) Do I still need to check the tester before I trust a reading?
Yes, and Klein's stated procedure is to verify the RT310 on a receptacle you know is live and correctly wired before each use. Then plug in, read the indicators for wiring condition, press the GFCI button to confirm the ground fault device trips, and press the AFCI button for arc fault verification.
How fast can I get the Klein Tools RT310 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Klein Tools RT310 come with a warranty?
Absolutely. The Klein Tools RT310 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Klein Tools RT310?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Klein Tools RT310 from ZenSupply?
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