HANMATEK SF4 5-in-1 Stud Finder with LCD

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Product guide

HANMATEK SF4 5-in-1 Stud Finder with LCD

Finder: The HANMATEK SF4 is a 5-in-1 wall scanner with three wood-stud depth settings, metal detection and live AC wire detection. Its LCD, colour LED indicators and audible alerts provide scan feedback, while its battery-powered design and included carry bag suit DIY wall-scanning tasks.

At a glance

Five scanning modes cover three wood-stud depth settings, metal detection and live AC wire detection.
Auto-calibration is claimed before each scan. The listing also describes one-button operation.
Three-colour LED indicators and audible beeps are intended to help indicate readiness and proximity to a target.
The listing claims live, unshielded AC wire detection up to 120mm deep.

Price

£12.74Save 15%

Reference price: ~~£14.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

Combines wood, metal and live-wire scanning in one handheld tool.
Three wood-depth settings give a choice of scan depth for different wall thicknesses.
LCD, colour LED indicators and audible alerts offer more than one form of scan feedback.
The stated kit includes a 9V battery and carry bag.

Technical specifications

16 specifications

Identity
Brand	HANMATEK
Model	SF4

Scanning and display
Detection modes	5-in-1 Detection for Versatile Applications:Features five scanning modes: 3 wood stud depth settings (0.5", 1", 1.5"), metal detection, and live AC wire detection—engineered for accurate results across drywall, plaster, and lath.
Wood stud depth settings	Adjustable depth detection (12.7mm / 25.4mm / 38mm)
Live wire detection depth	up to 120mm deep
Display type	LCD
Search coil size	38 Millimetres

Power and battery
Power configuration	Battery Powered
Batteries required	Yes

Dimensions and installation
Dimensions listed	22.4L x 9.5W x 5H centimetres
Weight listed	280 Grams

Materials and appearance
Material listed	Plastic
Colour listed	Black, Silver, White

Other details
Recommended uses	Construction Site Scanning, Safety Inspection
Manufacturer warranty description	12-month warranty
Country of origin	China

What to know before buying

The listed wood-depth figures appear in two formats: 0.5", 1" and 1.5" in one claim, and 12.7mm / 25.4mm / 38mm in another. The live-wire claim is up to 120mm and is specifically for live, unshielded wires. Treat these as listing claims, not verified performance. Follow the manual and do not rely on a scanner alone to establish that a wall is safe to drill.

What’s in the box

Included

1x 9V battery
1x carry bag
1x HANMATEK SF4 stud finder
User manual

Who is it for?

A good fit for

DIY users locating wood studs, metal or live AC wires before wall work.
Buyers who want three selectable wood-scanning depths and visual and audible indications.
Users who prefer a battery-powered handheld scanner with a carry bag.

Less suited to

Buyers who require independently verified detection accuracy or a guarantee that a wall is clear of wiring.
Anyone needing a tool to confirm electrical safety without following other precautions.

HANMATEK SF4 5-in-1 Stud Finder with LCD · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.6 / 5 · 383 ratings

5 stars41%41%
4 stars19%19%
3 stars14%14%
2 stars10%10%
1 star16%16%

Customer feedback is mixed on metal-detection accuracy, product quality and value. Some customers say the detector does the job, while others describe inconsistent results or poor value. For buyers using its listed metal, wood and live-wire modes, that uncertainty matters: treat scan indications as guidance rather than a guarantee, particularly before drilling.

Positive themes

Some customers say the metal detector does the job well.
Some customers consider the product good value.

Negative themes

Some customers report inconsistent metal-detection results.
Some customers consider the product poor value.

Mixed feedback

Feedback on accuracy, quality and value is mixed.

Frequently asked questions

What can the HANMATEK SF4 detect?

The listing describes scanning for wood studs, metal and live AC wires, with three depth settings for wood studs.

What are the three wood-stud depth settings?

The listing gives 0.5", 1" and 1.5" in one claim and 12.7mm / 25.4mm / 38mm in another. The figures correspond in apparent intent, but the listing is inconsistent in how it presents them.

Does it include a battery?

Yes. The listed package contents specify one 9V battery, alongside a carry bag and user manual.

How deep does its live-wire detection reach?

The listing claims detection up to 120mm for live, unshielded electrical wires. This is a manufacturer claim, not an independent performance measurement.