A studio shot of the Klein Tools RT110 receptacle tester featuring a durable orange polymer housing. The device displays a clear diagnostic chart for identifying wiring conditions such as open ground, open neutral, and open hot, alongside a standard 3-prong North American electrical plug.
A product infographic for the Klein Tools RT110 outlet tester. Text callouts highlight its ability to detect common wiring problems in standard receptacles, its 110/125V AC nominal voltage rating, and the high-visibility light sequence used to indicate correct or incorrect wiring.
An angled perspective view of the RT110 electrical circuit tester against a white background. The image showcases the compact, ergonomic design and the integrated LED windows at the base which provide clear visual feedback during safety inspections.
A high-angle view of the RT110 receptacle analyzer focusing on the diagnostic legend. The faceplate clearly lists fault codes for rapid identification of hot and ground reversals and other critical wiring errors in residential or commercial outlets.
A side profile of the Klein Tools RT110 highlighting the rugged industrial construction. The image emphasizes the textured grip on the sides and the standard electrical prongs designed for easy insertion into grounded 120V AC wall receptacles.
An action shot of the RT110 receptacle tester plugged into a standard residential wall outlet. Two orange LEDs are brightly illuminated, providing a simultaneous visual confirmation of a correctly wired electrical circuit in a home environment.
Test & Measurement 2015 promotional how to video
A studio shot of the Klein Tools RT110 receptacle tester featuring a durable orange polymer housing. The device displays a clear diagnostic chart for identifying wiring conditions such as open ground, open neutral, and open hot, alongside a standard 3-prong North American electrical plug.
A product infographic for the Klein Tools RT110 outlet tester. Text callouts highlight its ability to detect common wiring problems in standard receptacles, its 110/125V AC nominal voltage rating, and the high-visibility light sequence used to indicate correct or incorrect wiring.
An angled perspective view of the RT110 electrical circuit tester against a white background. The image showcases the compact, ergonomic design and the integrated LED windows at the base which provide clear visual feedback during safety inspections.
A high-angle view of the RT110 receptacle analyzer focusing on the diagnostic legend. The faceplate clearly lists fault codes for rapid identification of hot and ground reversals and other critical wiring errors in residential or commercial outlets.
A side profile of the Klein Tools RT110 highlighting the rugged industrial construction. The image emphasizes the textured grip on the sides and the standard electrical prongs designed for easy insertion into grounded 120V AC wall receptacles.
An action shot of the RT110 receptacle tester plugged into a standard residential wall outlet. Two orange LEDs are brightly illuminated, providing a simultaneous visual confirmation of a correctly wired electrical circuit in a home environment.
Test & Measurement 2015 promotional how to video
KLEIN TOOLS

Klein Tools RT110 Receptacle Tester for Standard 120V AC Outlets Detects Open Ground Neutral and Hot Wiring Faults with Visual LED Diagnostic Chart

Only 1 left
SKU: RT110
$10.97

Description

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Instant Electrical Diagnostics: The Klein Tools RT110 Standard Receptacle Tester

The Klein Tools RT110 is a vital diagnostic tool for homeowners, DIY enthusiasts, and professional inspectors who need to verify the safety of North American 120V electrical outlets. Engineered for simplicity and speed, this plug-and-play tester identifies the most frequent wiring hazards in standard 3-wire receptacles. By simply inserting the tool into an energized outlet, you receive immediate visual confirmation of the circuit's status. Whether you are moving into a new home, troubleshooting a dead outlet, or certifying a renovation project, the RT110 provides the peace of mind that comes from knowing your wiring is correct and safely grounded.

Durability meets precision in this compact electrical analyzer. The RT110 features an easy-to-read light sequence chart printed directly on the rugged orange housing, allowing you to instantly detect critical faults such as open grounds, open neutrals, open hots, and reversed polarity. Built to survive the rigors of a busy jobsite, it is drop-tested up to 6.6 feet and operates reliably in temperatures ranging from freezing to 140°F. While its primary mission is safety verification, its pocket-sized design makes it an effortless addition to any tool belt or kitchen junk drawer. Ensure your family and equipment are protected from faulty wiring with the professional accuracy of Klein Tools.

Key Features

  • Rapid Fault Detection: Instantly identifies correct wiring, open ground, open hot, open neutral, and reversed polarity.
  • Intuitive LED Display: High-visibility light sequence provides clear diagnostic results at a glance.
  • Industrial Durability: Ruggedized construction built to withstand a 6.6-foot (2m) drop.
  • Wide Operating Range: Performs accurately in temperatures from 32°F to 140°F (0°C to 40°C).
  • Safety Certified: Conforms to UL Std 1436 and is certified to CSA Std C22.2 #160 for trusted performance.
  • Compact Portability: Ergonomic, pocket-sized design for convenient storage and quick access on the move.

What's Included

  • (1) RT110 Standard Receptacle Tester
  • (1) User Reference Guide

Specifications

Tester Type Standard Receptacle Analyzer
Nominal Voltage 110/125V AC at 50/60Hz
Outlet Compatibility 3-Wire Grounded Outlets
Drop Protection 6.6 ft.
Operating Temperature 32°F to 140°F
GFCI Testing No
Certification UL Listed / CSA Certified
Housing Material Impact-Resistant Polymer
Overall Height 2.88 in.
Overall Width 1.88 in.
Overall Depth 1.62 in.
Weight 1.9 oz.
UPC 092644690266

Pro-Tip: Receptacle testers are excellent for identifying wiring mistakes, but they cannot detect the quality of your ground or the presence of multiple hot wires on a single circuit. If the RT110 indicates "Correct" but you are still experiencing electrical interference or flickering lights, consult a licensed electrician to perform a comprehensive load test and ground resistance check.