Key benefits — why you need this tester Quickly and reliably separate real diamonds from simulants using professional thermal conductivity measurement. Reduces uncertainty during buying, selling, appraising, or collecting. Portable, pocketsized design lets you test stones anywhere — instore, at auction, or on remote inspections — without bulky equipment. Simple pass/fail feedback with a bright LED scale and audible confirmation: nine or more lights and a beep confirm a real diamond, so you get clear results every time. What it does and how it helps Thermal conductivity detection: measures a stone's heat transfer properties to identify diamonds with professionalgrade accuracy. Clear indicator system: the bright LED scale provides an immediate visual result while the beep gives an unmistakable audible confirmation when a diamond is detected. Fast, dependable readings: an advanced imported chip delivers accurate measurements and quick response times, minimizing wait and improving workflow. Design, compatibility, and performance Portable and userfriendly: lightweight, compact, handheld, and batterypowered — fits easily into a pocket for onthego use. Durable and practical for field work: designed for jewelers, collectors, and field inspections where mobility and fast decisions matter. Operating conditions: reliable performance between 5–35°C (41–95°F) with humidity below 80%. Typical use scenarios Retail verification: confirm a customer's loose stone or mounted jewelry on the sales floor before completing a transaction. Field appraisal: carry the tester to estate sales, auctions, or pawn shops to quickly screen stones before . Inventory checks and quality control: perform routine spot checks in workshops or storage facilities to maintain confidence in stock authenticity. What makes it stand out Professional thermal conductivity method rather than visual guesswork. Clear, immediate results with both visual (LED scale) and audible (beep) confirmation. Advanced imported chip for consistent, fast, and accurate readings under normal working conditions. Practical notes Lightweight and batterypowered for true portability. Ideal for jewelers, collectors, inspectors, and anyone who needs a fast, reliable diamond screening tool. Operates within specified temperature and humidity ranges for accurate results.