here!
I’m your shopping assistant for PC builds, upgrades, and everything tech.
Got questions? Ask away!
Start a conversation
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.
Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC
LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant
Klein Tools ET45 is an Electronic Voltage Tester. Designed as a simple, easy to use tester to check, verify or troubleshoot common residential electrical wiring in electrical outlets, light fixtures, doorbells and more. This tester does not require batteries, and features a pocket clip for convenient carrying.
- Tests AC voltages from 24V to 240V AC at four useful levels
- Tests DC voltages from 32V to 330V at four levels
- Built-in test lead holder on back of tester holds the leads in one of two positions: one so that they are spaced correctly to test tamper-resistant US-style outlets
- Test leads can be docked in the holder for convenient storage
- Batteries not required; tester is powered by the applied voltage
- Built to withstand a 9.8-Foot (3m) drop
- Safety Rating: CATIII, Double insulation
- Ingress protection IP44 dust and water resistant
FEATURES
Tests common AC voltages from 24V to 240V AC at four levels
Tests common DC voltages at four levels from 32V to 330V
No batteries required; powered by the voltage used when testing
 Klein Tools 5139C Zipper Bag, Camouflage Cordura Nylon Tool Pouch with Heavy-... |  Klein Tools 5139PAD Zipper Bag, Cordura Nylon Tool Pouch with Layered Padding... |  Klein Tools ET910 USB Power Meter and Tester, USB-A Digital Meter for Voltage... |  Klein Tools ET250 Voltage Meter, AC/DC Tester, Digital Multimeter, Low Voltag... |  Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage,... |  Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with... | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | 5139C | ET900 | ET910 | ET250 | ET920 | ET310 |
| Description | Klein Tools 5139C Zipper Bag, Camouflage Cordura Nylon Tool Pouch with Heavy-... | Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, ... | Klein Tools ET910 USB Power Meter and Tester, USB-A Digital Meter for Voltage... | Klein Tools ET250 Voltage Meter, AC/DC Tester, Digital Multimeter, Low Voltag... | Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage,... | Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with... |
Digital AC/DC Voltage Tester, 12-240V AC, 32-330V DC
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.
LED Illumination, DC Polarity, Auto Off, CATIII 350V-Class 2-Double Insulation, IP44 Dust & Water Resistant
Klein Tools ET45 is an Electronic Voltage Tester. Designed as a simple, easy to use tester to check, verify or troubleshoot common residential electrical wiring in electrical outlets, light fixtures, doorbells and more. This tester does not require batteries, and features a pocket clip for convenient carrying.
- Tests AC voltages from 24V to 240V AC at four useful levels
- Tests DC voltages from 32V to 330V at four levels
- Built-in test lead holder on back of tester holds the leads in one of two positions: one so that they are spaced correctly to test tamper-resistant US-style outlets
- Test leads can be docked in the holder for convenient storage
- Batteries not required; tester is powered by the applied voltage
- Built to withstand a 9.8-Foot (3m) drop
- Safety Rating: CATIII, Double insulation
- Ingress protection IP44 dust and water resistant
FEATURES
Tests common AC voltages from 24V to 240V AC at four levels
Tests common DC voltages at four levels from 32V to 330V
No batteries required; powered by the voltage used when testing
Klein Tools 5139C Zipper Bag, Camouflage Cordura Nylon Tool Pouch with Heavy-... |  Klein Tools 5139PAD Zipper Bag, Cordura Nylon Tool Pouch with Layered Padding... | Klein Tools ET910 USB Power Meter and Tester, USB-A Digital Meter for Voltage... | Klein Tools ET250 Voltage Meter, AC/DC Tester, Digital Multimeter, Low Voltag... |  Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage,... | Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with... | |
|---|---|---|---|---|---|---|
| Customer Reviews | — | — | — | — | — | — |
| Price | — | — | — | — | — | — |
| Mfg. No. | 5139C | ET900 | ET910 | ET250 | ET920 | ET310 |
| Description | Klein Tools 5139C Zipper Bag, Camouflage Cordura Nylon Tool Pouch with Heavy-... | Klein Tools ET900 USB Power Meter, USB-A Digital Meter for Voltage, Current, ... | Klein Tools ET910 USB Power Meter and Tester, USB-A Digital Meter for Voltage... | Klein Tools ET250 Voltage Meter, AC/DC Tester, Digital Multimeter, Low Voltag... | Klein Tools ET920 USB Power Meter, USB-A and USB-C Digital Meter for Voltage,... | Klein Tools ET310 AC Circuit Breaker Finder, Electric and Voltage Tester with... |