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.

Presidium Multi Tester Iii | Desertcart Bolivia

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

💎 Test with confidence, carry with pride — the ultimate gem authenticity sidekick!

DUAL DETECTION POWER - World’s first all-in-one tester for both colorless diamonds and moissanites—no need for multiple devices.
ERGONOMIC PORTABLE - Rubberized anti-slip grip with lightweight design and carrying case for effortless, on-the-go use.
USER FRIENDLY VIEWING - 180-degree multi-angle LED display adapts for right or left-handed professionals, enhancing readability.
RELIABLE RESULTS EVERY TIME - Consistent probe pressure technology guarantees dependable identification, minimizing user error.
PRECISION AT THE MICRO LEVEL - Industry’s thinnest 0.6mm retractable probe tip ensures ultra-accurate gemstone testing.

The Presidium Multi Tester III is a compact, ergonomic handheld device designed to instantly and accurately distinguish between colorless diamonds and moissanites. Featuring the industry’s thinnest 0.6mm retractable probe tip, it can test stones as small as 0.02 carats. Its 180-degree multi-angle LED display supports both right and left-handed users, while the rubberized anti-slip grip and included carrying case make it perfect for professionals on the move. This all-in-one instrument leverages advanced thermal and electrical property detection to deliver reliable gemstone verification, setting a new standard in precision testing tools.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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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.

How is product pricing calculated?+

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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Bs.7411

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In stock

Sold byAmazon BoliviaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Bolivia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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ASIN	B004QYR8U6
Best Sellers Rank	#37,512 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #174 in Multi Testers
Item model number	PMuT III
Manufacturer	Presidium
Product Dimensions	8.64 x 6.1 x 20.32 cm; 97 g

Presidium Multi Tester Iii

Description

Specifications

Common Questions