TIANXUN MD-91 Gold Metal Detector
Original price was: 25,000.00৳ .24,000.00৳ Current price is: 24,000.00৳ .
Main Features
- Model: TIANXUN MD-91
- Automatic high-power tracking system
- Full-control ground balance
- Ferrous vs. non-ferrous discrimination
- 15″ waterproof search coil
- Threshold audio control for deep signals
- Frequency control to reduce interference
- Rechargeable battery with LED indicator
TIANXUN MD-91 Gold Metal Detector Details
| Specification | Details |
|---|---|
| Brand | TIANXUN / Nanbei Instrument |
| Model | MD-91 (4M) / MD-91 4 Meter |
| Type | Underground / Ground-Search Metal Detector |
| Power Supply | Rechargeable battery / 8 × 1.5V (optional) |
| Operating Frequency | ~6.99 kHz ± 0.2 kHz |
| Audio Frequency | 450 ± 10 Hz |
| Maximum Depth | Up to ~3.5 meters (in lab test) |
| Search Coil | 15″ (waterproof) |
| Ground Balance | Full-control automatic ground balance |
| Discrimination | Ferrous vs. Non-ferrous metal discrimination |
| Threshold Control | Yes – audio threshold adjustment |
| Frequency Control | Yes – for interference compensation |
| Body Material | High-strength ABS engineering plastic |
| Weight / Build | Durable, designed for deep ground use |
The TIANXUN MD-91 (4M) Metal Detector is a powerful underground treasure-hunting device, ideally suited for deep strata operations in Bangladesh and beyond. With a high-power launch system and an automatic tracking system, this detector delivers excellent probing depth and accurate detection even in heavily mineralized terrain. One of the standout features of the MD-91 is its full-control ground balance, which helps eliminate “mineralization reaction” — a common issue in highly mineralized soil. It also offers metal discrimination, distinguishing between ferrous and non-ferrous metals, making it ideal for serious treasure hunters looking for coins, gold, silver, or relics.
The 15-inch waterproof search coil enhances stability, while threshold control lets you finely tune the audio to hear the weakest, deepest signals. To handle electromagnetic noise or interference from power lines, the MD-91 includes a frequency control dial. Powered by a rechargeable battery (or optionally external 12 V), it also features battery-life LED indicators and a durable housing made from strong ABS plastic.
What is the price of TIANXUN MD-91 Gold Metal Detector in Bangladesh?
The TIANXUN MD-91 (4M) deep-search metal detector is listed by local Bangladeshi retailers. Since pricing can vary with import, stock, and demand, it’s best to contact trusted metal detector shops in Bangladesh for the most current price and warranty details.
FAQs
-
What maximum depth can the MD-91 (4M) reach?
In lab tests, the MD-91 can detect large metal targets up to approximately 3.5 meters deep. -
Does the MD-91 distinguish between different metals?
Yes — it has discrimination mode to separate ferrous (iron) and non-ferrous (gold, silver, copper) metals. -
Is there a ground-balance feature?
Yes — the MD-91 offers full-control ground balance to reduce mineralization interference. -
What kind of power source does it use?
It can be powered by a rechargeable battery, or optionally by 8 × 1.5V batteries or external DC 12V power. -
Is the search coil waterproof?
Yes — the MD-91 is equipped with a 15-inch waterproof search coil, which helps for use in damp soil.
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