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Ohaus Precision Balance EXR223N with 7-inch Color Touchscreen and Multi-Communication Interfaces

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Maximum Capacity
220 g
Readability
1 mg
Pan Size
5.1 in x 5.1 in (130 mm x 130 mm)
Internal Calibration
AutoCal™ - Automatic
Draftshield
Included
All 27 specifications
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Specifications 27

Brands
Ohaus
New/Used
Used
Maximum Capacity
220 g
Readability
1 mg
Pan Size
5.1 in x 5.1 in (130 mm x 130 mm)
Internal Calibration
AutoCal™ - Automatic
Draftshield
Included
Dimensions
15.5 in x 14.6 in x 9 in (393 mm x 370 mm x 230 mm) (LxHxW)
Battery Life
Not Applicable
Legal for Trade
NTEP Certified
Auxiliary Display Model
Available as an Accessory
Auto Door
Not Applicable
Tare Range
To capacity by subtraction
Working Environment
10°C – 30°C, 80%RH, non-condensing (50°F – 86°F, 80%RH, non-condensing)
Net Weight
16.3 lb (7.4 kg)
In-Use Cover
Included
Communication
USB device; USB host x 2; RS232; Ethernet TCP/IP; WiFi/Bluetooth (available as an accessory)
Power
AC Adapter (Included)
Units of Measurement
Milligram; Ounce Troy; Pennyweight; Gram; Grain; Carat; Ounce
Minimum Weight
0.14 g
Display
7" colour TFT touchscreen
Pan Construction
Stainless Steel
Built-in Ionizer
No
Stabilization Time
1.5 s
Repeatability, typical
1 mg
Minimum Weight (USP, 0.1%, typical)
1.4 g
Linearity ±
2 mg

Product description

High-precision analytical balance with 220 g capacity, 1 mg readability, TFT touchscreen, and advanced connectivity options.

The Ohaus Precision Balance EXR223N (31059220) is a high-accuracy analytical balance engineered for precise weighing applications critical in biotechnology, molecular diagnostics, and bioprocessing workflows. Featuring a maximum capacity of 220 g and a readability of 1 mg, this balance supports various weighing modes including basic weighing, parts counting, check counting, percent weighing, dynamic weighing, and density determination, making it essential for biomanufacturing and synthetic biology research that demands precise quantification.

Key technical features include:

  • 7-inch TFT 16.7M color touchscreen with glass overlay for intuitive operation and enhanced user interaction.
  • Robust metal housing with SST 316 stainless steel weighing pan and an anti-static glass draftshield, ensuring durability and stability in controlled environments.
  • Advanced communication options including Dual USB Host (Type A), USB Device (Type C), Ethernet (RJ45), and RS232 interfaces. Optional Wi-Fi and Bluetooth dongle support facilitates seamless integration into laboratory data systems and electronic laboratory notebooks.
  • Includes time synchronization via NTP, 4-level user management, and an internal system log supporting up to 100,000 entries, facilitating compliance and traceability in regulated biotech labs.
  • AutoCal™ internal automatic calibration ensures consistent accuracy without manual intervention, critical for reproducible molecular biology and cell imaging experiments.
  • Supports multiple units of measurement including milligram, gram, ounce, carat, and more, providing versatility for diverse bioanalytical applications.
  • The balance is NTEP Certified and Legal for Trade, suitable for quality control in clinical diagnostics and pharmaceutical biomanufacturing.

With a compact footprint of 393 mm x 370 mm x 230 mm and a fast stabilization time of 1.5 seconds, the Ohaus EXR223N is highly suited for precision weighing tasks in biotechnology research, bioprocessing, and other laboratory environments requiring reliable and repeatable measurements. This balance is widely adopted in workflows that necessitate meticulous sample weighing, formulation, and quantification fundamental to synthetic biology and molecular cloning protocols.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 3 November 2026