Your Safer Source for Science
All-In-One Science Solution
Your Safer Source for Science
Address P.O. Box 219 Batavia, IL 60510
Phone 800-452-1261
Email [email protected]
Item #: OB2143 
alternative codes
Alternative Product Codes: S94792A,1292749,SB45472

Price: $570.00

5+ items: $541.81

Temporarily out of stock; call for availability.

Flinn Scientific electronic balances are both accurate and dependable. Whether you teach chemistry, biology or physical science, we have an digital balance to fit your laboratory needs.

See more product details

Other Options

Item# OB2143 OB2141 OB2138 OB2142 OB2139 OB2140
Capacity 120 g 210 g 300 g 410 g 510 g 1000 g
Readability 0.001-g 0.01-g 0.1-g 0.01-g 0.1-g 0.1-g
Precision 0.002 g 0.01 g 0.1 g 0.02 g 0.1 g 0.1 g
Price $570.00 $425.00 $221.00 $555.00 $262.00 $390.00
5+ items
Sold by each
Enter number of items Temporarily out of stock; call for availability. Temporarily out of stock; call for availability.

Product Details

Accuracy and dependability. These two words best describe the Flinn Scientific electronic balances. Whether you teach chemistry, biology or physical science, we have an electronic balance to fit your laboratory needs. Consider these features:
• Readability to 0.1, 0.01 or 0.001 grams
• Extra large, easy-to-see digital display
• Internal calibration weight storage
• Overload protection
• Stackable—saves valuable counter space
• Stainless-steel weighing pans
• Protective flip-down cover
• Anti-theft security bracket
• Full two-year warranty

Each balance is supplied with a 120-volt AC adapter. All balances except OB2143 will run on a 9-volt battery, sold separately. The OB2143 model includes a draft shield. Best of all is our price. Flinn digital balances are a terrific value and so economically priced that you’ll want to order several of them for your laboratory.

Balance Care and Use
Digital Balances are an essential component of any high school science lab. Flinn Scientific carries balances that vary in precision from 1 g to 0.0001 g.

Following are tips to properly use, store and maintain balances.

  • Balances should always be placed on a level and sturdy surface.
  • Recalibrate balances every time they are physically moved from one location to another. If balances always remain in the same location, calibrate them at least once a month.
  • Allow 15 minutes to an hour of warm-up time before using balances.
  • Ensure that balances are free from drafts, excessive shaking and electromagnetic interference.
  • It is important to zero, or tare, balances each time an object is removed as long as the value is not required for subsequent measurements. This will help ensure that the zero point of the balance is in conjunction with regular calibrations.
  • Static can interfere with accurate weighing. Make sure the balance surface, objects and work area are free from static.
  • To maximize balance life, keep the housing and platform clean. A damp cloth and mild detergent may be used to remove debris from under the platform.
  • Store the balance in a cool and dry location.
  • Unplug AC adapters and/or remove batteries when balances will not be used for extended periods of time.

See more Science Laboratory Electronic Balances


Capacity: 120 g. Readability: 0.001 g. Precision: ±0.002 g. Pan size: 9.8 cm diameter.