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🧲 Detect magnetic fields like a pro—no contact, no hassle, all precision.
The Triplett ET30 is a compact, battery-powered magnetic field detector designed for quick, non-contact detection of AC, DC, and permanent magnetic fields. Ideal for testing solenoid valves, relays, and speaker coils, it features a built-in self-test magnet, LED flashlight, and low battery indicator. Lightweight and portable, it includes two AAA batteries and offers reliable performance across industrial and audio applications.






















| ASIN | B08BTQ4YSZ |
| Best Sellers Rank | #224,153 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #338 in Circuit Testers |
| Brand Name | Triplett |
| Color | ET30 |
| Customer Reviews | 3.8 3.8 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 |
| 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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