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Explorer® Precision Balances

Category Laboratory Balances
Manufacturer Ohaus
Country of manufacture the United States
Limited Time Offer! - Ends Jun 30
Get a $100 reward card when you purchase an Explorer Balance. See blog post for full details on how to redeem.

The OHAUS Explorer Series of precision balances combine modern features and design elements to offer unmatched functionality in a line of high-performance balances unlike any other on the market. These smart and intuitive balances simplify even the most complex laboratory measurements.

Weighing, Parts Counting, Percent Weighing, Checkweighing, Animal/Dynamic Weighing, Filling, Totalization/Statistics, Formulation, Differential Weighing, Density Determination, Peak Hold, Ingredient Costing, Pipette Adjustment, SQC, Statistics

5.7" (145 mm) Full-color VGA graphic touchscreen display with user-controlled brightness

AC adapter (included)

RS232 and USB (included) or second RS232/Ethernet (accessories sold separately) . GLP/GMP data output with real-time clock.

Modular design, metal base, ABS top housing, stainless steel pan, glass draftshield with top mounted side doors and flip/sliding top door (1mg models only), illuminated up-front level indicator, integral weigh below hook, security bracket, calibration lock, four touchless sensors, full housing in-use cover

Design Features
Selectable environmental filters, auto tare, user selectable span calibration points, software lockout and reset menu, user selectable communication settings and data print options, user definable project and user IDs, auto standby, up to 14 operating languages


  • A large color touchscreen gives access to the advanced application modes and icon-driven application software features such as user manager, library, and minimum weight indication.
  • Explorer features fast stabilization times, optimized linearity and repeatability specifications, enhanced vibration filtering and the choice of traditional calibration or AutoCal™ models.
  • Explorer's sturdy modular design includes metal housing and a display that can be separated from the weighing base and tower- or wall-mounted for easy viewing in any workspace


Key Attributes
Capacity 220-10200g (model dependent)
Readability 0.001-0.1g (model dependent)
Calibration External or Internal and External (model dependent)
Draft protection None* (Doors on 0.001g readability models)
Data output port RS232 and USB
Warranty 2 Years


Manufacturer Specifications
Model EX223 EX423 EX623 EX1103 EX2202 EX4202 EX6202 EX10202 EX6201 EX10201
Automatic Door - - - - - - - - - -
External Calibration EX223/E EX423/E - - EX2202/E EX4202/E EX6202/E - EX6201/E -
Certified Models - EX423N - EX1103N - EX4202N - EX10202N - EX10201N
Capacity (g) 220 420 620 1100 2200 4200 6200 10200 6200 10200
Readability d (g) 0.001 0.01 0.1
Verification Interval* e (g) - 0.01 - 0.01 - 0.1 - 0.1 - 0.1
Class* - II - I - II - I - I
Repeatability stg (g) ±0.001 ±0.01 ±0.1
Linearity ±0.002 ±0.02 ±0.2
Stabilization Time (sec) ≤1.5 ≤1
Sensitivity Drift (ppm/°C) 3 5 3
Weighing Units Gram, Milligram, Kilogram, Carat, Ounce, Ounce Troy, Pound, Pennyweight, Grain, Newton, Momme, Mesghal, Hong Kong Tael, Singapore Tael, Taiwan Tael, Tical, Tola, Baht, Custom Unit 1, Custom Unit 2, Custom Unit 3
Weighing Applications Weighing, Percent Weighing, Parts Counting, Check Weighing, Dynamic/Animal Weighing, Filling, Totalization, Formulation, Differential Weighing, Density Determination, Peak Hold, Ingredient Costing, Pipette Adjustment, SQC
Pan Size (diameter) Ø 5.12 in / 130 mm 7.48 x 7.87 in / 190 x 200 mm
Calibration All models feature external calibration. Models feature AutoCal™ internal calibration, except for EX.../E models
Tare Range To capacity by subtraction
Power Requirements AC Adapter Input: 100-240 VAC, 0.6A, 50-60 Hz
Display Type Full-color VGA graphic display, 4-wire resistive touch screen
Display Size 5.7 in / 145 mm (diagonal)
Display Housing (wxdxh) 7.68 × 3.54 × 6.06 in / 195 × 90 × 154 mm
Base Housing (wxdxh) 9.06 × 13.78 × 15.47 in / 230 × 350 × 393 mm 9.06 × 3.86 × 15.47 in / 230 × 98 × 393 mm
Communication RS232, USB and optional ethernet or 2nd RS232
Temperature Range 50°F to 86°F / 10°C to 30°C
Humidity Range 80% max up to 86°F/30°C decreasing linearly to 50% at 104°F/40°C, non-condensing
Storage Conditions 140°F/60°C at 10% to 90% relative humidity, non-condensing
Net Weight 15 lbs / 6.9 kg 10 lbs / 4.3 kg 11 lbs / 5 kg
Shipping Weight 21 lbs / 9.6 kg 15 lbs / 6.8 kg 16 lbs / 7.4 kg
Shipping Dimensions (WxHxD) 21.65 × 15.16 × 21.69 in / 55 × 38.5 × 55.1 cm 21.65 × 15.16 × 11.45 in / 55 × 38.5 × 29.1 cm

Weighing Units on certified models= mg, g, oz, lb, ct, ozt, grain, dwt


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Explorer® Precision Balances Accessories