GOLD TESTER B&C (Bullion & Coin)

Why Manifest & Co

Built to Protect Every Transaction

Counterfeit bullion — tungsten-cored bars, plated blanks, and debased coins — is a growing risk across gold trading hubs in the UAE, Saudi Arabia, Egypt, South Africa and beyond. GOLD TESTER B&C gives dealers, assayers and compliance teams an instant, on-counter, non-destructive second line of defence.

🎯

Catches Tungsten-Filled Fakes

Tungsten closely matches gold's density but not its sound velocity — the exact loophole this instrument is built to expose in seconds.

🚫

Zero Damage to Stock

No drilling, no acid, no cutting. Bars, ingots, coins and jewellery are tested fully intact and remain sellable.

⏱

Results in Seconds

2–4 measurements per second with auto-stability lock — verify an entire tray of bars or coins in minutes, not hours.

📊

Auditable Data Trail

Store up to 1,000 readings on-device and export via Bluetooth or USB for compliance records and customer reports.

🧪

Built for the Common Case

The standard S15-P06 and G5M-P10 probes cover the vast majority of bars and coins with flat, parallel measuring surfaces — additional probes are available separately for specialized geometries.

🌡

Real-Time Temperature Compensation

One-time probe calibration holds accuracy across shifting counter and vault temperatures — no daily recalibration needed.

🧳

Rugged, Field-Ready Case

IK08 impact-rated / IP67 water-resistant carry case built for souks, exchange floors, refineries and site visits.

🔋

All-Day Battery Life

Rechargeable Li-ion cell with low-battery and timeout auto-off — ready for a full trading day on a single charge.

The Technology

One Measurement Principle. Two Ways to Apply It.

GOLD TESTER B&C is built on a single ultrasonic time-of-flight measurement — timing how long a pulse takes to travel through the metal. The same physical reading can be configured two ways: fix the sound velocity to solve for thickness, or fix the thickness to solve for sound velocity. These are two applications of one underlying principle, not two independent detection technologies.

1

Sound-Velocity Verification (Fixed Thickness)

With the item's certified thickness entered, the instrument solves for sound velocity. Every metal conducts sound at its own signature velocity — pure gold reads a highly consistent ~3240 m/s, while tungsten, brass, lead and steel each read distinctly different. This is the configuration used to verify material identity on a known-dimension item.

Detects Tungsten Cores & Composite Fills

2

Thickness Verification (Fixed Sound Velocity)

With the material's sound velocity set (e.g. gold's ~3240 m/s), the instrument solves for wall thickness to 0.001mm resolution — cross-referencing a bar's certified dimensions and stamped weight against its actual ultrasonic thickness profile to reveal hidden cavities or inconsistent fill material invisible to the eye or a simple scale.

Reveals Hidden Cavities & Inserts

Thickness verification on a 200g gold bar

Dimensional cross-check on a 200g / 999.9 fine bar — 2.203mm wall reading

Material identification mode comparing brass reference

Material-ID mode flags a mismatch — reference sample reads 4403 m/s (Brass), not gold

In Action

Precision Verification, On the Counter

Live readings from GOLD TESTER B&C testing a certified 999.9 fine gold bar — sound velocity locked at 3240 m/s, confirming authentic gold.

GOLD TESTER B&C reading 3240 m/s on a gold bar

Verified Authentic — 3240 m/s sound-velocity match for 999.9 fine gold

Couplant-assisted probe contact on a bullion bar

Technical Data

Full Specifications

GOLD TESTER B&C is engineered on a high-precision ultrasonic measurement platform, calibrated and configured specifically for bullion and coin authentication.

Measurement Performance
Measuring Range	0.15 – 2000 mm (steel-equivalent reference)
Sound Velocity Range	1 – 19,999 m/s
Resolution	0.001 mm / 0.0001 in
Measurement Modes	Pulse-Echo, Interface-Echo, Echo-Echo
Measuring Modes	Single Point, Scan, Min/Max Capture, Differential, Alarm, Low-Limit
Calibration	One-Time Probe Calibration & Two-Point Calibration
Measuring Speed	2 – 4 readings per second
Probe Frequency Range	2 – 15 MHz
Gain / Echo Adjustment	16 Gain Stages / 7 Echo Stages
Data Storage	Up to 1,000 stored readings (thickness, velocity, time-stamp)
Display & Connectivity
Display	FSTN LCD with backlight, English menu structure
Communication	Bluetooth & Mini-USB, virtual serial port protocol
Printing	Compatible with optional portable thermal printer
Build & Power
Power Supply	3.7V rechargeable Li-ion battery
Power Management	Timeout auto-off, low-battery auto-off
Operating Temperature	-10°C to 50°C
Storage Temperature	-30°C to 60°C
Unit Dimensions	157 × 78 × 37 mm
Unit Weight	≈ 260 g
Shell Material	High-impact ABS
Carry Case Rating	ABS hard case — IK08 impact / IP67 water & dust resistant

Probe System

Two Standard Probes. Built for the Everyday Case.

GOLD TESTER B&C ships with two probes as standard — between them, these cover the great majority of bars and coins encountered on a typical counter or vault floor. A measurement requires a position where the item's upper and lower surfaces are flat and parallel; curved surfaces (such as a solid cylinder) and irregular or recycled scrap generally cannot be measured reliably.

S15-P06

Single Element

Ø8mm · 0.15–28mm
15MHz

G5M-P10

Dual Element

Ø13mm · 0.8–300mm
5MHz

Probe	Element	Range (mm)	Diameter	Frequency	Contact Temp.
S15-P06 — Fine Coin Probe	Single	0.15 – 28	8mm	15MHz	-10 – 60°C
G5M-P10 — Standard Bullion Probe	Dual	0.8 – 300	13mm	5MHz	-10 – 60°C

Additional probes (large-bar, compact-bullion, thin-wafer, heavy-ingot and high-temperature variants) are available separately for specialized geometries outside the standard kit's range — these cover rarer application scenarios and are ordered on request rather than shipped as standard. Measuring range and accuracy stated for steel-equivalent reference material; actual performance varies with alloy composition, surface finish and couplant contact.

Read Before You Test

Known Limitations

Being upfront about what this instrument cannot do is as important as what it can:

Requires a flat position where the item's upper and lower surfaces are parallel — the curved surface of a solid cylinder cannot be measured.
Gold chains and irregular recycled/scrap materials generally cannot be measured, since a suitable flat, parallel measuring position usually cannot be found.
The two measurement modes (fixed-thickness and fixed-velocity) share the same underlying ultrasonic principle — they are not independent detection technologies, and should be understood as two configurations of one test rather than two separate checks.
Firmware is currently English-language only; no Arabic-language version is available at this time.

What's In The Case

Complete Verification Kit

Every GOLD TESTER B&C ships in a rugged IK08/IP67 hard case, ready to deploy from the vault to the counter.

✓ GOLD TESTER B&C main unit
✓ Standard 2-probe verification set (S15-P06 + G5M-P10)
✓ Ultrasonic couplant bottle
✓ Rechargeable Li-ion battery + charger
✓ USB data cable
✓ Bluetooth data module
✓ Calibration reference block
✓ Quick-start operation guide
✓ IK08 / IP67 rugged hard carry case
✓ Manifest & Co product warranty card

Where It's Used

Purpose-Built for the MEA Gold Trade

From souk trading counters to refinery quality control, GOLD TESTER B&C fits directly into existing verification workflows.

Gold Souks & Jewellery Retailers Bullion Dealers & Exchange Houses Refineries & Assay Offices Pawnbrokers & Loan Houses Mints & Coin Dealers Customs & Border Verification Banks & Precious Metal Vaults Auction Houses & Pawn Auctions Import / Export Trading Houses