About Klein Tools
As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.
GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles
The RT250 is an electrical receptacle tester that tests the wiring conditions at an electrical outlet and inspects GFCI devices. The LCD displays the voltage, identifies the wiring fault, and the time required to trip a GFCI device. It is designated for use with North American 3-wire 120V electrical outlets.
- GFCI Receptacle Tester features a large backlit LCD readout of voltage and clear indication of wiring conditions
- LCD readout shows the time required to trip a GFCI device
- Detect and identify common wiring faults
- Patent pending detection of Open Neutral Open Ground wiring fault
- Auto-Hold is convenient for hard-to-reach outlets
- Bright green and red LEDs illuminate for visual indicators
- CAT II 135V safety rating
- Durable 6.6-Foot (2 m) drop protection
GFCI electrical circuit tester inspects GFCI devices
Easy to read LCD display shows voltage, faults, GFCI trip time
Identifies common wiring faults on North American 120V outlets
 LCD and Flashlight, Voltage Electrical Test Kit |  Circuit Analyzer with Large LCD |  AC Circuit Breaker Finder, Electric Tester |  Voltage Tester, Non-Contact Low Voltage Tester Pen |  Dual Range, Non-Contact Voltage Tester |  GFCI Outlet Tester and AC/DC Voltage Tester | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | RT250KIT | RT390 | ET310 | NCVT1P | NCVT2P | ET45VP |
| Description | LCD and Flashlight, Voltage Electrical Test Kit | Circuit Analyzer with Large LCD | AC Circuit Breaker Finder, Electric Tester | Voltage Tester, Non-Contact Low Voltage Tester Pen | Dual Range, Non-Contact Voltage Tester | GFCI Outlet Tester and AC/DC Voltage Tester |
 Auto-Ranging Digital Multi-Tester |  Multimeter, Digital Manual-Ranging |  Non-Contact Voltage Tester |  Outlet Tester, AFCI and GFCI Receptacle Tester |  Circuit Breaker Finder Tool Kit |  Digital Multimeter Electrical Test Kit | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | ET270 | MM325 | NCVT2PKIT | RT310 | 80016 | MM320KIT |
| Description | Auto-Ranging Digital Multi-Tester | Multimeter, Digital Manual-Ranging | Non-Contact Voltage Tester | Outlet Tester, AFCI and GFCI Receptacle Tester | Circuit Breaker Finder Tool Kit | Digital Multimeter Electrical Test Kit |
GFCI Outlet Tester with LCD Display, Electric Voltage Tester for Standard 3-Wire 120V Electrical Receptacles
About Klein Tools
As an American manufacturer of hand tools for more than 160 years, Klein Tools makes premium-quality, professional-grade tools that deliver performance, durability and precision. Our team continues to put six generations of expertise into each tool by using the highest quality materials and superior workmanship.
Klein Tools doesn't just make great products, we make great products that stand up to the demands of the professionals who use them every day … Since 1857.
The RT250 is an electrical receptacle tester that tests the wiring conditions at an electrical outlet and inspects GFCI devices. The LCD displays the voltage, identifies the wiring fault, and the time required to trip a GFCI device. It is designated for use with North American 3-wire 120V electrical outlets.
- GFCI Receptacle Tester features a large backlit LCD readout of voltage and clear indication of wiring conditions
- LCD readout shows the time required to trip a GFCI device
- Detect and identify common wiring faults
- Patent pending detection of Open Neutral Open Ground wiring fault
- Auto-Hold is convenient for hard-to-reach outlets
- Bright green and red LEDs illuminate for visual indicators
- CAT II 135V safety rating
- Durable 6.6-Foot (2 m) drop protection
GFCI electrical circuit tester inspects GFCI devices
Easy to read LCD display shows voltage, faults, GFCI trip time
Identifies common wiring faults on North American 120V outlets
LCD and Flashlight, Voltage Electrical Test Kit | Circuit Analyzer with Large LCD | AC Circuit Breaker Finder, Electric Tester | Voltage Tester, Non-Contact Low Voltage Tester Pen | Dual Range, Non-Contact Voltage Tester | GFCI Outlet Tester and AC/DC Voltage Tester | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | RT250KIT | RT390 | ET310 | NCVT1P | NCVT2P | ET45VP |
| Description | LCD and Flashlight, Voltage Electrical Test Kit | Circuit Analyzer with Large LCD | AC Circuit Breaker Finder, Electric Tester | Voltage Tester, Non-Contact Low Voltage Tester Pen | Dual Range, Non-Contact Voltage Tester | GFCI Outlet Tester and AC/DC Voltage Tester |
Auto-Ranging Digital Multi-Tester | Multimeter, Digital Manual-Ranging | Non-Contact Voltage Tester | Outlet Tester, AFCI and GFCI Receptacle Tester | Circuit Breaker Finder Tool Kit | Digital Multimeter Electrical Test Kit | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | ET270 | MM325 | NCVT2PKIT | RT310 | 80016 | MM320KIT |
| Description | Auto-Ranging Digital Multi-Tester | Multimeter, Digital Manual-Ranging | Non-Contact Voltage Tester | Outlet Tester, AFCI and GFCI Receptacle Tester | Circuit Breaker Finder Tool Kit | Digital Multimeter Electrical Test Kit |