how do you calibrate it?

Calibration is not needed as far as I know

Placing on diamonds and having no response, what does that mean?

I have used this unit and had the same response on known diamonds. Sometimes the stone is dirty and needs a cleaning. This can throw off results. Also, my unit is getting returned when I have a suitable replacement. It sometimes takes 3 or more tries to get it to register. Clean the stone and try touching it with a firm but not point grinding pressure a few times and if it doesn't work try another tester. Assuming of course you know the diamond is real.

How can I get a replacement tip?

You can get it replaced from manufacturer, fill out the return form.

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Presidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants

Presidium Multi Tester III (PMuT III) All-in-One Instrument for Testing Diamonds, Moissanites and Diamond Simulants

Product ID: 3228232

💎Tests diamonds & moissanites in one device

📏Industry-thinnest 0.6mm retractable probe tip

🔋Powered by 3 AAA batteries for portable use

₨183480

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💎 Unlock the secret sparkle with the ultimate gem tester!

360 READABILITY - 180-degree multi-view LED display adapts perfectly for right or left-handed users.
CALIBRATION SUPPORT - Easy calibration with dedicated customer assistance to guarantee reliable results every time.
ALL IN ONE PRECISION - Seamlessly identify diamonds and moissanites with a single, cutting-edge instrument.
ERGONOMIC PORTABLE - Rubberized anti-slip grip and lightweight design for effortless, on-the-go testing.
ULTRA THIN PROBE TIP - 0.6mm retractable tip ensures accurate testing on stones as small as 0.02ct.

The Presidium Multi Tester III (PMuT III) is the world’s first all-in-one handheld instrument designed to accurately test both colorless diamonds and moissanites. Featuring the industry’s thinnest 0.6mm retractable probe tip, it can test stones as small as 0.02ct. Powered by 3 AAA batteries and equipped with a 180-degree multi-view LED display, it offers ergonomic handling and versatile readability for professionals on the move. Calibration support ensures consistent, reliable results, making it an essential tool for jewelers and gemologists.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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Great price for an authentic product. Fast international shipping too!

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The product quality is outstanding. Exactly what I needed for my work.

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