








⚡ Power Up Your Precision — Test Smarter, Work Faster!
The Klein Tools ET45 Voltage Tester delivers professional-grade AC/DC voltage testing from 24V to 330V with bright LED indicators and built-in test lead holders. Battery-free operation ensures uninterrupted use, while IP44 ingress protection and drop resistance make it a durable companion for any jobsite. Compact and lightweight, it’s engineered for accuracy and convenience in residential and commercial electrical troubleshooting.






| Brand | KLEIN TOOLS |
| Power Source | Voltage-powered |
| Style | 24/240 V |
| Color | Orange |
| Item Weight | 1.8 Ounces |
| Item dimensions L x W x H | 4.45 x 1.19 x 1.05 inches |
| Min. Operating Voltage | 24 Volts (AC) |
| Specification Met | CE |
| Measurement Type | Voltmeter |
| UPC | 092644691843 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644691843 |
| Part Number | ET45 |
| Item Weight | 1.8 ounces |
| Product Dimensions | 4.45 x 1.19 x 1.05 inches |
| Item model number | ET40 |
| Is Discontinued By Manufacturer | No |
| Size | One Size |
| Finish | Brushed |
| Material | Plastic Housing, PCB with Electronic Components |
| Pattern | Solid |
| Shape | Rectangular |
| Item Package Quantity | 1 |
| Display Style | Analog LED |
| Special Features | Built-in Test Lead Holders on Back of Tester Spaced Correctly to Hold Leads for Testing Tamper-Resistant US-style Outlets |
| Included Components | Tester |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 1 year manufacturer |
T**N
Electrical Work DIY Must ⚡️
I’m not an electrician. I am a retired tradesmen of the sheet-metal industry, but I do know some electrical work and I pretty much do my own around the house. This is a valuable tool to own to avoid getting shocks and knowing if you have life current or not.
W**.
cheap and works great
Its cheap and works. Others complain that the probes aren't long enough. There are plastic covers on them, take them off and then probes are long enough.
R**N
Save yourself the Shock!
How many times ahve you been working on a DIY project and wondered is the power on or off? Oh well, let me get to work! and Whammy you got the shock! We've all been there and this will save you, literally and never hurts to be safe!These is SUPER easy to use and while basic, it's a small form factor that is straightforard and simple to operate and a time and shock saver!
B**.
Quality and dependability
Nothing to dislike with the item. Use for checking electrical outlet.
J**Z
Good tool
Excelente for easy and fast volt reading… very practical and functional
W**R
It does what it says on the tin.
I purchased this to go in my hamfest bag. It measures voltage. That's what it's supposed to do.
J**R
Trying to avoid a revolting experience
Working MVA's, after disconnecting the battery, it proves beneficial to ascertain if a wire it truly deenergized, before cutting something, not to speak of electric or hybrid vehicles.
A**R
The wires are too short
and the lights are too dim to be used in a well-lit place
Trustpilot
2 weeks ago
2 months ago