Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Continuity, GFCI Receptacle Tester with Test Leads and Receptacle Cord
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
Klein Tools' ET270 is an auto-ranging digital multi-tester that measures AC/DC voltage, resistance, continuity, and performs a battery test. It also tests wiring conditions in standard 120VAC and GFCI electrical receptacles and inspects North American GFCI devices. Comes with Right-Angle Test Leads, Receptacle Test Cord, Instructions, and all required batteries. For more than 160 years, Klein Tools has manufactured premium-quality, professional-grade hand tools that deliver the performance, durability and precision needed to get the job done right. Our family of engineers, workers and craftsm…
SpecPicks Verdict
SpecPicks classifies Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistanc… as a category leader on buyer feedback in the tools & maintenance category, based on 234 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for tools & maintenance of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.7★ average across customer reviews
- ✓ BACKLIT DISPLAY: LCD shows clear readings in low-light conditions for enhanced visibility
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- VERSATILE FUNCTIONALITY: Measures AC/DC voltage up to 600V, 40MOhms resistance; additional features include audible continuity, battery test and receptacle test modes
- DETECT COMMON WIRING FAULTS: Detect and identify common wiring faults using receptacle test mode, ensuring electrical safety and proper functionality of GFCI receptacles
- TRIP TIME DISPLAY: LCD readout shows the time required to trip a GFCI device, allowing for quick and accurate troubleshooting
- BATTERY TEST AND FIND MODE OPTIONS: Battery test feature for checking 9V and 1.5V battery functionality, while find mode easily identifies circuit breakers to a corresponding receptacle
- BACKLIT DISPLAY: LCD shows clear readings in low-light conditions for enhanced visibility
- CONVENIENT FEATURES: Test lead holders on the back of the meter, kickstand and optional magnetic hanger (Cat. Nos. 69445 or 69417) for hands-free operation
Full Specifications
| Brand | KLEIN TOOLS |
|---|---|
| Color | Orange/ Black |
| Model | ET270 |
| Style | GFCI Receptacle Tester |
| Item Width | 3.13 Inches |
| Style Name | GFCI Receptacle Tester |
| Unit Count | 1.0 Count |
| Item Length | 6.41 Inches |
| Part Number | ET270 |
| Power Source | Hand_powered |
| Item Type Name | Building Material |
| BACKLIT DISPLAY | LCD shows clear readings in low-light conditions for enhanced visibility |
| Item Dimensions | 6.41 x 3.13 x 1.84 inches |
| COMPLETE PACKAGE | Includes carrying case, test leads with CAT III/CAT IV safety caps, receptacle test cord, instructions, and 2 x AAA batteries |
Ready to buy?
Klein Tools ET270 Auto-Ranging Digital Multi-Tester, AC/DC, Resistance, Continuity, GFCI Receptacle Tester with Test Leads and Receptacle Cord is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-12. Price and availability subject to change.
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