eOUTIL ST100 Stud Finder Wall Scanner
- Material Type: Plastic
- Power Source: Battery
- Item Weight: 0.2 pounds
- Color: Yellow
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
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ASIN: B089M1WDQHModel: ST100Category: Stud Finders
Overview
EOUTIL's ST100 is a budget electronic stud finder with LED and audio alerts, rated for walls up to 3/4 inch thick and running on a single 9V battery.
This is a budget electronic stud finder that calibrates briefly when held over a non-stud area before scanning.
- Electronic stud finder with LED and audio alerts
- Rated for walls up to 3/4 inch thick
- Detects wood, metal and joists
- Powered by one 9V battery, not included
Who it's for
Casual homeowners doing occasional wall-mounting jobs who want a low-cost electronic stud finder, rather than contractors wanting daily-use durability.
Pros and cons
- Low price point for an electronic stud finder
- LED and audio alerts make edges easy to spot
Performance notes
The finder calibrates for about two seconds when first held against the wall away from a stud, then beeps and lights up as it detects density changes while sliding across the surface, marking stud edges with LED flashes. It is rated for walls up to 3/4 inch thick and runs on a single 9V battery, not included.
Specifications
| Brand | eOUTIL |
|---|---|
| Model | ST100 |
| Dimensions & fit | |
| Item Weight | 0.2 pounds |
| Item Dimensions L X W X H | 2.6 × 1.6 × 1.6 inches |
| Power & efficiency | |
| Power Source | Battery |
| Battery Type | 9V |
| Construction & materials | |
| Material Type | Plastic |
| Color | Yellow |
| Included components | |
| Unit Count | 1 |
| Other details | |
| Display Type | LED/Beeping |
| Operating Frequency | 10 kHz |
| Number Of Items | 1 |
| International Protection Rating | IP54 |
| Recommended Uses For Product | Metal Detection |
Frequently asked questions
What wall thickness is the eOUTIL ST100 rated for?
The listing states it is designed for walls up to 3/4 inch thick.
What battery does the eOUTIL stud finder need?
It uses a single 9V battery, which is not included.
Does the eOUTIL stud finder need calibration before use?
Yes, it calibrates for about two seconds when first held against a non-stud area before scanning.