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🧲 Stay ahead of the magnetic curve—detect with confidence, anytime, anywhere!
The Triplett ET30 is a compact, battery-powered magnetic field detector designed for professionals who demand quick, non-contact detection of AC, DC, and permanent magnets. Featuring a built-in self-test magnet, LED flashlight, and low battery indicator, it’s ideal for testing solenoid valves, relays, and speaker coils in industrial and automotive settings. Ready to use out of the box with included AAA batteries and backed by a 1-year warranty.






















| ASIN | B08BTQ4YSZ |
| Best Sellers Rank | #179,976 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #270 in Circuit Testers |
| Brand Name | Triplett |
| Color | ET30 |
| Customer Reviews | 3.7 3.7 out of 5 stars (95) |
| Included Components | ET30 Magnetic Field Detector, AAA Batteries (2) |
| Item Dimensions | 3.5 x 1.5 x 10.5 inches |
| Item Weight | 3.2 ounces |
| Lower Temperature Rating | 32 °F |
| Manufacturer | Triplett Test Equipment and Tools |
| Measurement Type | Magnetic Field Detector |
| Model | ET30 |
| Number of Items | 1 |
| Part Number | ET30 |
| Power Source | Battery Powered |
| Style Name | Standard |
| UPC | 614395002336 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 104 °F |
| Warranty Description | 1-Year Manufacturer |
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