- DETECT COMMON WIRING PROBLEMS in residential settings with AC/DC voltage tester and receptacle outlet tester in one convenient kit
- TEST FOUR COMMON VOLT RANGES in AC (12V, 24V, 120V, and 240V) and DC (12V, 24V, 120V, and 240V)
- DISTINGUISHES BETWEEN AC OR DC voltages and indicates DC polarity
- BUILT IN FEATURES include test lead holders and convenient pocket clip
- USE WITH GFCI AND STANDARD OUTLETS to indicate open ground, reverse polarity, open hot, open neutral, and hot/ground reversed wiring conditions
- 110/125V AC AT 50/60Hz nominal voltage in a 3-wire outlet
- BRIGHT LCD READOUT on both testers provide clear indication of results
From the manufacturer



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.
Voltage Tester Kit, AC/DC Voltage Tester, GFCI Receptacle Tester, Detects Common Electrical Wiring Problems
ET40VP Electrical Test Kit is excellent for checking, verifying, or troubleshooting common residential electrical wiring. The ET40 is an AC/DC Electrical Voltage Tester with AC voltage at 12V, 24V, 120V, and 240V and DC voltage at 1.5V, 9V, 12V, and 17 to 24V covering the most commonly used residential voltages. RT210 Receptacle Tester detects the most common wiring problems in standard and GFCI receptacles: open ground, reverse polarity, open hot, open neutral, hot/ground reversed.
- Electrical test kit contains AC/DC voltage tester and receptacle tester to detect most common residential wiring problems
- Cat. No. ET40 tests AC voltage (12V, 24V, 120V, and 240V) and DV voltage (1.5V, 9V, 12V and 17 to 24V) at four common residential voltages
- Identifies and distinguishes between AC or DC voltage and indicates polarity when measuring DC voltages
- Includes built in test lead holders and convenient pocket clip for everyday carrying
- Cat. No. RT210 works on GFCI and standard outlets and indicates: open ground, reverse polarity, open hot, open neutral, and hot/ground reversed wiring conditions
- Nominal Voltage of 110/125 VAC at 50/60Hz in 3-wire outlet
- Both products have bright LCD’s to indicate voltage/test results
FEATURES
|
|
|
---|---|---|
Testers for AC/DC voltage and GFC/standard receptacles |
Distinguish from AC or DC voltage at four common voltages |
110/125 VAC outlet tester with lights indicates wiring problems |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
---|---|---|---|---|---|---|
ET310 | ET250 | RT310 | ET45 | ET45VP | ET60 | |
Customer Reviews |
4.7 out of 5 stars
21,333
|
4.6 out of 5 stars
1,183
|
4.7 out of 5 stars
1,657
|
4.5 out of 5 stars
1,375
|
4.6 out of 5 stars
282
|
4.6 out of 5 stars
1,183
|
Price | $49.56$49.56 | $37.88$37.88 | $39.36$39.36 | $11.98$11.98 | $17.97$17.97 | $29.97$29.97 |
Mfg. No. | ET310 | ET250 | RT310 | ET45 | ET45VP | ET60 |
Description | Digital Circuit Breaker Finder with GFCI Outlet Tester | AC/DC Voltage/Continuity Tester | AFCI /GFCI Outlet Tester | AC/DC Voltage Tester | AC/DC Voltage and GFCI Receptacle | Electronic AC/DC Voltage Tester, 12 to 600V |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
|
---|---|---|---|---|---|---|
RT250 | NCVT2PKIT | NCVT3PKIT | NCVT5KIT | RT250KIT | IR1KIT | |
Customer Reviews |
4.8 out of 5 stars
8,897
|
4.8 out of 5 stars
3,485
|
4.7 out of 5 stars
4,775
|
4.6 out of 5 stars
366
|
4.8 out of 5 stars
1,381
|
4.5 out of 5 stars
261
|
Price | $21.97$21.97 | $29.99$29.99 | $34.99$34.99 | $24.88$24.88 | $39.98$39.98 | $26.00$26.00 |
Mfg. No. | RT250 | NCVT2PKIT | NCVT3PKIT | NCVT5KIT | RT250KIT | IR1KIT |
Description | GFCI Receptacle Tester with LCD | Dual Range NCVT with Receptacle Tester Electrical Test Kit | Dual Range NCVT and AC/DC Voltage Tester Electrical Test Kit | Dual Range NCVT and GFCI Receptacle Tester Electrical Test Kit | Premium Dual-Range NCVT and GFCI | Infrared Thermometer with GFCI Receptacle |