Description
The FNIRSI WD-01 is a compact handheld wall detector scanner designed to quickly and accurately locate hidden materials behind walls, floors, and ceilings without drilling. Using an HPC (High-Performance Computing) detection module for superior anti-interference capability and faster processing, the WD-01 detects ferrous and non-ferrous metals, wooden studs and joists, live AC wires, and copper pipes — displaying the detected material type, depth, and centre position on its built-in LCD screen simultaneously. Indicator lights provide immediate visual feedback: green for no target detected, yellow as the scanner approaches a target, and red when directly over its centre, while an audible beep and continuous alert at the detection centre ensure the operator never misses a hidden hazard or structural element.
The WD-01 features two detection modes — Precision mode and Depth mode — to suit different wall construction types and required scan depths. A centre positioning hole on the device body allows the user to mark the exact drilling point immediately after detection, eliminating the need to transfer measurements by hand and significantly reducing the risk of drilling into a live wire or pipe. The device is powered by a built-in 3.7V 300mAh rechargeable lithium battery with USB Type-C charging and auto shut-down after five minutes of inactivity to conserve battery life. At 138 × 68 × 22mm and 122g, it is slim enough to fit in a tool belt or coat pocket.
For electricians, plumbers, civil contractors, interior fit-out teams, and DIY homeowners across Pakistan, the FNIRSI WD-01 addresses a genuine and common safety need. In Karachi’s high-rise residential and commercial construction sector, where concealed conduit wiring and embedded pipes are standard practice, the ability to scan a wall before drilling or cutting is not just convenient — it is an essential safeguard against damage to hidden electrical and plumbing infrastructure.
Why Choose the FNIRSI WD-01?
Pakistan’s construction and renovation trades operate in environments where wall construction often combines concrete, brick, embedded conduit wiring, and GI or copper pipes — making hidden-object detection a practical necessity before any drilling or fixing work. The WD-01’s ability to detect live AC wires up to 50mm deep, metal pipes up to 120mm, and copper up to 100mm covers the depth range typical of Karachi’s RCC and brick wall construction. For electricians working in fit-outs, interior designers overseeing TV mounting and partition installations, or homeowners wanting to hang shelving without risk, the WD-01’s centre positioning hole and visual-plus-audible alert system make it a genuinely practical and safety-conscious tool. Its rechargeable USB-C battery and compact size make it easy to keep charged and on hand for any on-site need.
FEATURES
- HPC detection module provides enhanced anti-interference performance and faster signal calculation compared to standard wall scanner chipsets, improving reliability on walls with mixed materials or nearby electrical interference.
- Detects four material types through walls, floors, and ceilings: ferrous metals (rebars, pipes), non-ferrous metals (copper), wooden studs and joists, and live AC wires.
- LCD display shows target depth, material type, and centre position simultaneously, giving the operator all necessary information in a single glance without switching between modes.
- Three-stage indicator light system — green (no target), yellow (approaching target), red (at centre) — provides instant visual position feedback during scanning.
- Audible beep on target detection with continuous alert when directly over the detected object’s centre for precise location confirmation.
- Two detection modes: Precision mode for accurate shallow-depth detection (wood up to 20mm), and Depth mode for greater penetration depth (wood up to 38mm, metals up to 120mm).
- Centre positioning hole design allows the user to mark the exact drilling point directly through the device body immediately after detection, ensuring precision and safety.
- Rechargeable 3.7V 300mAh lithium battery with USB Type-C charging; auto shut-down after 5 minutes of inactivity to extend battery life.
- Compact and lightweight at 138 × 68 × 22mm and 122g — fits comfortably in a hand or tool belt pouch.
- Display readout in centimetres (units are not switchable to inches per manufacturer confirmation).
SPECIFICATIONS
- Model: WD-01
- Max detection depth — metals (ferrous): 120mm
- Max detection depth — non-ferrous metals (copper): 100mm
- Max detection depth — AC wire: 50mm
- Max detection depth — single-strand copper wire: 40mm
- Max detection depth — wood (Depth mode): 38mm
- Max detection depth — wood (Precision mode): 20mm
- Display: LCD with depth, material type, and centre position indicators
- Indicator lights: Green / Yellow / Red (distance-based)
- Alarm: Audible beep; continuous alert at centre
- Battery: 3.7V 300mAh rechargeable lithium
- Charging: USB Type-C
- Auto shut-down: After 5 minutes without operation
- Units: Centimetres only (inches not supported)
- Dimensions: 138 × 68 × 22mm
- Weight: 122g
- Operating temperature: -5°C to 40°C
- Storage humidity: Up to 80% relative humidity
- Warranty: 2 years (direct purchase via fnirsi.com); 30-day return and refund guarantee
- Includes: WD-01 wall detector, Type-C charging cable, storage bag, user manual




