A&D Weighing GX-403AN Apollo Precision Balance with Internal Calibration, NTEP, 420 g x 0.001 g

Yes. The GX-403AN is an NTEP-approved Class II precision balance with NTEP Certificate of Conformance 21-045. It provides 0.001 g (1 mg) displayed readability, while the verified scale division (e) is 0.01 g for its approved configuration. This makes it suitable for businesses that need high-resolution measurements together with legal-for-trade capability. Local weights-and-measures requirements still apply before the balance is placed into commercial service.

The GX-403AN provides a 420 g maximum capacity with 0.001 g (1 mg) readability, allowing it to detect very small changes in sample mass. A&D specifies 0.001 g repeatability and ±0.002 g linearity, making it well suited for formulation, sample preparation, quality control, laboratory testing, production, and other applications requiring milligram-level measurements.

Yes. The GX-403AN features A&D's internal calibration system (ASC). Because the calibration mechanism is built into the balance, routine sensitivity adjustment can be performed without manually placing an external calibration weight on the pan. This can simplify calibration procedures and is particularly useful in laboratories and quality-controlled environments where consistent weighing performance is important.

The GX-403AN includes a 3.6-inch-high breeze break to help protect the weighing area from drafts and surrounding air movement. This is particularly valuable at the balance's fine 0.001 g readability, where small air currents can affect measurement stability. The breeze break helps create more consistent weighing conditions when working with lightweight or sensitive samples.

Yes. The GX-403AN includes USB and RS-232C communication interfaces, allowing weighing results to be transferred to compatible computers and other data-recording equipment. This can reduce manual transcription and simplify electronic recordkeeping. The balance also supports applications such as parts counting, percentage weighing, animal/dynamic weighing, density determination, statistics, and underhook weighing.