# Zircon MultiScanner i520 OneStep Multifunction Stud Finder vs Tavool TH250 4-in-1 Wall Stud Finder: specs and price compared

A sourced, side-by-side comparison of the Zircon MultiScanner i520 OneStep Multifunction Stud Finder (Zircon) and Tavool TH250 4-in-1 Wall Stud Finder (Tavool) among stud finders. Tavool TH250 4-in-1 Wall Stud Finder is the cheaper of the two at $15.99.

## Side by side

| Spec | Zircon MultiScanner i520 OneStep Multifunction Stud Finder | Tavool TH250 4-in-1 Wall Stud Finder |
| --- | --- | --- |
| US price | $49.99 | $15.99 |
| Brand | Zircon | Tavool |
| Max scan depth (in) | 3 | 2.36 |
| Sensing technology | capacitance (StudScan/DeepScan) + magnetic/inductive (Metal Scan) + AC field (WireWarning) with AutoCorrecting Technology (ACT) | electronic density-change sensing (capacitance) |
| Detects wood metal live wire | wood studs, metal (ferrous to 3 in., non-ferrous to 1.5 in.), live AC wiring to 2 in. | wood studs, metal studs/rebar (to 2.36 in.), live unshielded AC wire (to 2 in.) |
| Sensor array width (in) | — | — |
| Center vs edge find | center and edge find (4 modes: Stud Scan, DeepScan, Metal Scan, AC Scan) | center and edge find with directional LCD indicators |
| Display type | backlit LCD display with SpotLite laser-style pointer | LCD screen with stud center/edge markers, battery and wire-warning icons |
| Calibration method | automatic via ACT (AutoCorrecting Technology); no manual calibration step | press and hold Scan button before each session; tool must remain still while calibrating |
| Power source | 9V alkaline battery (not included) | 1x 9V battery (not included) |

## Key differences

- Max scan depth (in): Zircon MultiScanner i520 OneStep Multifunction Stud Finder 3 vs Tavool TH250 4-in-1 Wall Stud Finder 2.36
- Sensing technology: Zircon MultiScanner i520 OneStep Multifunction Stud Finder capacitance (StudScan/DeepScan) + magnetic/inductive (Metal Scan) + AC field (WireWarning) with AutoCorrecting Technology (ACT) vs Tavool TH250 4-in-1 Wall Stud Finder electronic density-change sensing (capacitance)
- Detects wood metal live wire: Zircon MultiScanner i520 OneStep Multifunction Stud Finder wood studs, metal (ferrous to 3 in., non-ferrous to 1.5 in.), live AC wiring to 2 in. vs Tavool TH250 4-in-1 Wall Stud Finder wood studs, metal studs/rebar (to 2.36 in.), live unshielded AC wire (to 2 in.)
- Center vs edge find: Zircon MultiScanner i520 OneStep Multifunction Stud Finder center and edge find (4 modes: Stud Scan, DeepScan, Metal Scan, AC Scan) vs Tavool TH250 4-in-1 Wall Stud Finder center and edge find with directional LCD indicators
- Display type: Zircon MultiScanner i520 OneStep Multifunction Stud Finder backlit LCD display with SpotLite laser-style pointer vs Tavool TH250 4-in-1 Wall Stud Finder LCD screen with stud center/edge markers, battery and wire-warning icons
- Calibration method: Zircon MultiScanner i520 OneStep Multifunction Stud Finder automatic via ACT (AutoCorrecting Technology); no manual calibration step vs Tavool TH250 4-in-1 Wall Stud Finder press and hold Scan button before each session; tool must remain still while calibrating
- Power source: Zircon MultiScanner i520 OneStep Multifunction Stud Finder 9V alkaline battery (not included) vs Tavool TH250 4-in-1 Wall Stud Finder 1x 9V battery (not included)

## Sources

- Zircon MultiScanner i520 OneStep Multifunction Stud Finder: https://www.zircon.com/tools/multiscanner-i520-onestep/ (zircon.com, verified 2026-08-05)
- Tavool TH250 4-in-1 Wall Stud Finder: https://www.manualslib.com/manual/2315933/Tavool-Th250.html (manualslib.com, verified 2026-08-05)

Canonical: https://frontdeskreview.com/gear/stud-finders/zircon-multiscanner-i520-vs-tavool-th250/
Cite: Per The Front Desk Review, Zircon MultiScanner i520 OneStep Multifunction Stud Finder ($49.99) vs Tavool TH250 4-in-1 Wall Stud Finder ($15.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/stud-finders/zircon-multiscanner-i520-vs-tavool-th250/
License: CC BY 4.0.