{"product_id":"ohaus-exr423-explorer-precision-balance","title":"OHAUS EXR423 Explorer EXR Precision Balance, 420g Capacity, 1mg Readability, AutoCal, Touchscreen","description":"\u003ch2\u003eOHAUS EXR423 Precision Balance — Milligram Accuracy Across a Practical 420 g Range\u003c\/h2\u003e\n\u003cp\u003eMany laboratory weighing tasks fall between the fine resolution of an analytical balance and the broad capacity of a high-range precision instrument. The OHAUS EXR423 Precision Balance fills that gap precisely: a 420 g maximum capacity paired with 1 mg readability delivers sub-gram measurement across a range wide enough for a majority of bench-level weighing tasks in chemistry, biology, and quality control. The enclosed draftshield and AutoCal™ ensure environmental factors never compromise that accuracy.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e420 g Capacity with 1 mg Readability:\u003c\/strong\u003e Extended precision range covers both milligram-accurate fine weighing and larger sample preparation within a single instrument.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAutoCal™ Automatic Calibration:\u003c\/strong\u003e Internal calibration weight self-activates on temperature drift detection, maintaining measurement traceability without manual intervention or external weights.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAnti-Static Glass Draftshield:\u003c\/strong\u003e 130 × 130 mm enclosed pan chamber shields against air currents and electrostatic charge that distort milligram-level readings.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e7-inch TFT Color Touchscreen:\u003c\/strong\u003e High-contrast glass-overlay display with touchless sensors lets users control taring and application modes without physical contact with the terminal.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBuilt-In Connectivity:\u003c\/strong\u003e USB Device, USB Host × 2, RS232, Ethernet; optional Wi-Fi and Bluetooth for wireless laboratory data networks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e11 Application Modes:\u003c\/strong\u003e Parts counting, formulation, check weighing, percent weighing, dynamic weighing, and more are all available natively on the platform.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHID and NTP Support:\u003c\/strong\u003e Driver-free PC connection and synchronized time-stamping streamline integration with data acquisition and LIMS environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDetailed Overview\u003c\/h3\u003e\n\u003cp\u003eThe EXR423 shares the 130 × 130 mm stainless-steel pan and draftshield configuration of the 220 g EXR223, but extends the working range nearly double — enabling milligram accuracy across a broader spectrum of sample masses. This makes it particularly useful for assay work where both reagent additions at the 1–5 mg level and bulk solvent masses approaching 400 g appear within the same protocol. Metal housing provides the dimensional stability required for repeatability at 1 mg sensitivity, and the robust glass draftshield construction maintains that performance in environments with nearby air circulation or HVAC drafts. The 10°C–30°C operating window and 80% humidity tolerance place the EXR423 within standard laboratory specifications. The four-level user management system and 100,000-entry log ensure compliance documentation remains organized and accessible.\u003c\/p\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLaboratory-scale chemical formulation spanning milligram additives and gram-scale solvents\u003c\/li\u003e\n  \u003cli\u003eGemstone and precious-metal weighing requiring milligram accuracy across a wide mass spectrum\u003c\/li\u003e\n  \u003cli\u003ePharmaceutical QC weighing of finished-dose units and reference standards\u003c\/li\u003e\n  \u003cli\u003eParts counting in precision manufacturing where individual component mass is low\u003c\/li\u003e\n  \u003cli\u003eResearch biology sample preparation involving combined reagent additions to larger vessels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose the OHAUS EXR423?\u003c\/h3\u003e\n\u003cp\u003eThe OHAUS EXR423 Precision Balance gives milligram-level precision a practical capacity ceiling of 420 g, fitting the real-world demands of diverse bench-level tasks. With automated calibration, full connectivity, and built-in compliance tools, it is ready to serve both research and regulated production environments. Order today to bring milligram accuracy to a wider range of your daily weighing work.\u003c\/p\u003e","brand":"Ohaus","offers":[{"title":"Default Title","offer_id":53702072172757,"sku":"EXR423","price":3805.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/9933\/4869\/files\/10cabbf1-6966-4ab5-86eb-2ea667990ef4.jpg?v=1778262012","url":"https:\/\/weighcore.com\/products\/ohaus-exr423-explorer-precision-balance","provider":"Weighcore","version":"1.0","type":"link"}