Description

Introduction FNIRSI WD-02 wall detector,

The FNIRSI WD-02 wall detector redefines what a compact scanning tool delivers on a construction site or home renovation project. FNIRSI upgraded this model from the WD-01 by adding a high-definition TFT color display and a redesigned user interface that communicates depth, signal strength, and detection mode on a single screen at a glance. Furthermore, the team added support for six languages — English, Russian, Portuguese, Japanese, Simplified Chinese, and Traditional Chinese — making it a globally accessible device.

The WD-02 operates in three distinct modes. In metal mode, the sensor detects ferrous objects like steel rebar and metal pipes at depths up to 120 mm, and it reaches copper pipes at up to 100 mm. In wood mode, the device finds timber studs behind drywall at depths up to 38 mm. Additionally, in AC mode, the scanner locates live electrical wires up to 50 mm deep — a critical safety check before anyone puts a drill bit through a wall.

Three sensitivity levels let users fine-tune detection accuracy for different wall materials. As a result, the same tool performs reliably on thin plasterboard, thick concrete render, and tiled surfaces. The brand-new positioning hole at the device tip marks the exact drill point directly on the wall without needing a separate pencil step. Therefore, both professional tradespeople and first-time DIYers complete jobs faster and safer with the WD-02.

The built-in 300 mAh rechargeable lithium battery charges via USB-C and delivers enough runtime for a full working day of intermittent scanning. Astz BD imports this unit directly and makes it available across Bangladesh at a competitive price with fast delivery.

 

Specifications FNIRSI WD-02 wall detector

Model	FNIRSI WD-02
Detection Modes	Metal mode / Wood stud mode / AC live wire mode
Ferrous Metal Depth	Up to 120 mm
Non-Ferrous (Copper) Depth	Up to 100 mm
AC Live Wire Depth	Up to 50 mm
Wood Stud Depth	Up to 38 mm
Single Stranded Wire (>4mm²)	Up to 40 mm
Sensitivity Levels	3 adjustable levels
Display	High-definition TFT color LCD
Alerts	Visual signal bar + audible beep
Positioning Feature	Built-in positioning hole at device tip
Battery	3.7V 300 mAh built-in rechargeable lithium
Charging Port	USB-C
Dimensions	138 × 68 × 22 mm
Languages Supported	English, Russian, Portuguese, Japanese, Simplified Chinese, Traditional Chinese
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +70°C
Humidity (Metal Mode)	0 – 85% RH
Humidity (Foreign Object Mode)	0 – 60% RH
Humidity (AC Mode)	0 – 30% RH
Brand	FNIRSI
Predecessor Model	FNIRSI WD-01 (upgraded version)
Availability in BD	In stock at Astz BD — ships nationwide

 

Key Features Wall scanner detector Bangladesh

1. 3-in-1 detection: metal (ferrous & non-ferrous), wood stud, and AC live wire in one device
2. Upgraded HD TFT color display shows signal strength, depth, and mode simultaneously
3. 3-level sensitivity adjustment for high detection accuracy on different wall materials
4. Positioning hole at the device tip marks the exact drill point directly on the wall
5. Visual signal strength bar + audible beep alert when a target object is detected
6. Auto-calibration adjusts the sensor to the wall surface before each scan
7. Built-in 3.7V 300 mAh rechargeable lithium battery — USB-C charging
8. Compact dimensions: 138 × 68 × 22 mm — fits comfortably in one hand
9. 6-language menu support: English, Russian, Portuguese, Japanese, Simplified & Traditional Chinese
10. Upgraded version of the WD-01 with improved UI and display quality
11. Operating temperature range: -10°C to +50°C for outdoor and indoor use

Who Uses This Stud finder metal detector wall,

1. Electricians checking for live AC wires before cutting into walls
2. Plumbers locating hidden metal and copper pipes before drilling
3. Civil engineers and construction supervisors scanning rebar positions in concrete
4. Interior designers and renovation contractors planning safe wall-mount installations
5. Carpenters finding wood studs for secure shelf and bracket mounting
6. Homeowners undertaking DIY renovation and home improvement projects
7. Building inspectors auditing wall structures for embedded objects
8. HVAC technicians tracing duct-support framing behind wall surfaces

 

Applications Hidden wire detector tool

1. Pre-drilling safety checks on walls, ceilings, and floors to avoid live wire contact
2. Locating metal rebar in concrete walls before anchor bolt installation
3. Finding concealed copper pipes to prevent accidental puncture during renovation
4. Stud detection for mounting heavy TV brackets, shelves, and wall units securely
5. Live AC wire detection during electrical panel upgrade and rewiring jobs
6. Mapping hidden structural framing in old buildings with unknown internal layouts
7. Checking floor slabs for embedded heating pipes before laying new flooring
8. Construction site safety audits before any core drilling or chasing work begins

 

Frequently Asked Questions (FAQ) FNIRSI WD-02 wall detector

What objects does the FNIRSI WD-02 wall detector find inside walls?

The WD-02 detects ferrous metals (steel rebar, iron pipes) at up to 120 mm, non-ferrous metals (copper pipes) at up to 100 mm, wood studs at up to 38 mm, and live AC electrical wires at up to 50 mm depth.

How does a user switch between the three detection modes?

A dedicated mode button on the front panel cycles through metal mode, wood mode, and AC mode. The active mode appears on the TFT screen immediately after each button press, so switching takes one tap.

Does the WD-02 work on tiled or concrete walls?

Yes. The 3-level sensitivity adjustment lets users lower sensitivity for dense materials like concrete or tile, which reduces false positives and keeps detection accurate behind thicker wall surfaces.

How does a user charge the WD-02 battery?

The WD-02 uses a standard USB-C cable for charging. Users plug the cable into the port on the device body and connect it to any USB charger or power bank. The 300 mAh battery reaches full charge in roughly 1–1.5 hours.

What does the positioning hole on the WD-02 do?

The positioning hole sits at the leading tip of the device. When the scanner detects an object, the hole aligns with the center of the detected target. Users push a pencil through the hole to mark the exact spot on the wall without removing the device.

Is the FNIRSI WD-02 an upgrade over the WD-01?

Yes. FNIRSI improved the WD-01 by fitting an upgraded HD TFT color display, redesigning the UI for faster readability, adding a sixth language option, and refining the sensitivity circuit for higher detection accuracy at all three sensitivity levels.

Does Astz BD ship the FNIRSI WD-02 outside Dhaka?

Yes. Astz BD ships the WD-02 to all 64 districts of Bangladesh through partnered courier services. Buyers outside Dhaka receive delivery within 2–5 working days depending on their location.

 

Why Buy from Astz BD FNIRSI WD-02 price Bangladesh

Astz BD stocks the FNIRSI WD-02 wall detector as an original sealed unit and delivers it to every district of Bangladesh. Buyers skip the long international shipping wait and receive a quality-verified product at a fair local price.

1. Original FNIRSI product — not a copy or refurbished unit
2. Quality inspection before dispatch confirms every unit powers on and detects correctly
3. Fast delivery across Bangladesh — Dhaka, Chittagong, Sylhet, Rajshahi, Khulna, and beyond
4. Multiple payment options: bKash, Nagad, Rocket, bank transfer, and cash on delivery
5. Dedicated after-sales support for any defect or damage reported on arrival
6. Secure packaging prevents screen and body damage during courier transit
7. Bulk pricing available for contractors, construction companies, and resellers
8. Honest product description — no misleading specs or inflated claims