










⚡ Illuminate your workflow with precision and safety!
The Klein Tools ET40 Digital AC/DC Voltage Tester offers versatile voltage testing from 1.5V DC up to 240V AC with bright LED indicators for clear polarity and voltage readings. Built for professionals, it features built-in test lead holders, rugged IP41 protection, and meets CATIII 250V safety standards, ensuring reliable, accurate, and safe electrical troubleshooting on any jobsite.






| Brand | KLEIN TOOLS |
| Power Source | Battery Powered |
| Style | 12/240 V |
| Color | Orange |
| Item Weight | 2.3 Ounces |
| Item dimensions L x W x H | 5.24 x 1.52 x 1.11 inches |
| Min. Operating Voltage | 1.5 Volts |
| Specification Met | CE |
| UPC | 092644691836 |
| Manufacturer | Klein Tools |
| Global Trade Identification Number | 00092644691836 |
| Part Number | ET40 |
| Item Weight | 2.3 ounces |
| Product Dimensions | 5.24 x 1.52 x 1.11 inches |
| Item model number | ET40 |
| Batteries | 2 AAA batteries required. (included) |
| 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 |
| Measurement Accuracy | +/-0.5% |
| Display Style | Analog LED |
| Special Features | DC Polarity Indicators for DC Positive, DC Negative, and Both Illuminated for AC. Tests Low DC Voltage to 1.5V. Built in Test Lead Holders on Sides of Tester. |
| Included Components | No|Tester, User Manual, and 2 x AAA Batteries |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Description Pile | 2 x AAA |
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