The Mettler Toledo® JE703C/A Carat Balance is a high-capacity, legal-for-trade precision instrument engineered specifically for high-volume diamond wholesalers, gemstone importers, and assay offices. Expanding on the structural performance of the JE line, this balance offers a larger maximum capacity of 700 carats (140 grams) to comfortably accommodate bulk gemstone parcels, extensive layout trays, and heavy mineral specimens. It achieves an ultra-fine standard resolution of 0.001 carats (0.1 mg) powered by Mettler Toledos signature Monobloc weighing cell, which provides exceptional measurement ruggedness and thermal stability against changing conditions on a busy showroom floor.

To streamline intensive daily handling, the JE703C/A focuses on rapid execution, clocking a fast 2.0-second stabilization time to keep inventory workflows moving without delay. Rather than using a complex touchscreen, it features a traditional, angled backlit LCD display with extra-large digits, optimizing legibility under the overhead halogen spotlights typical of retail counters. The unit relies on a one-touch internal adjustment mechanism that uses internal weights to recalibrate the balance at a single keystroke. Furthermore, it can be powered by standard AA batteries in addition to the standard AC adapter, giving jewelry professionals the unique flexibility to operate fully certified, legal-for-trade inspections at off-site purchasing events, pawn clinics, or remote trade shows where a main power line is inaccessible.

Key Specifications & Features
• Expanded Carat Capacity: Delivers an extended maximum capacity of 700 ct (140 g) with an analytical precision of 0.001 ct (0.1 mg), fully NTEP certified for commercial trade law enforcement.
• One-Touch Internal Calibration: Contains built-in internal test masses, allowing showroom staff to correct sensitivity and re-verify accuracy at a single button press without handling external calibration weights.
• Hybrid Power Options: Operates via the included AC adapter or four AA batteries, allowing complete portability for certified, on-the-go asset evaluations.
• High-Contrast Backlit LCD: Outfitted with an angled, high-visibility digital display presenting large numerical data to prevent clerical recording errors in variable lighting.
• 90 mm Stainless Steel Pan: Equipped with a durable, easy-to-clean 90 mm (3.5") diameter weighing platform enclosed within a clear glass draft shield to isolate loose materials from ambient air currents.
• Front-Facing Level Controls: Features a highly visible upfront alignment bubble and dual adjustable leveling feet directly at the front of the housing for rapid setup verification.
• 16 Selectable Weight Metrics: Supports seamless, one-click toggling between any two preferred core weight metrics, including carats, grams, pennyweights, troy ounces, and grains.
• 8 Built-In Software Applications: Programmed with dedicated firmware profiles for data tracking, including totalization for multiple component sets, statistics, and piece counting.
• Under-Balance Weighing Hook: Includes an integrated under-hook on the base of the balance, ideal for suspending large, oddly shaped items or running liquid immersion density calculations to test piece purity.
• Native Dat Routing: Features a standard RS232 interface port to direct weigh-log info cleanly to back-office inventory computers, secondary consumer-facing screens, or receipt ticket printers.