Explorer EX423 Precision Scale from Ohaus

Readability (mg) 1
Capacity (g) 420
Stabilization Time (sec) 1
Repeatability (mg) 1
Pan Size (mm) 130
Internal Calibration Yes
RS-232 Yes
Bluetooth No
PS2 No
WiFi No
Ethernet Yes
Display Touch
Mobile App No

With a wide selection of options available when acquiring a 1.00mg readability Precision Scale, Lab.Equipment can simplify the unit selection process for you! The Ohaus Explorer EX423 might be the best solution for refining your lab process and operations, but if not, you can surely find the right lab balance unit for your requirements by reading our FAQ, review, and comparison of the EX423 to other Precision Scales so keep reading below.

Carrying 185 Precision Scales from all 8 Precision Scale manufacturers including Ohaus, Lab.Equipment is the only site you will find real descriptions carefully written for you, handing out apples-to-apples comparisons of analytical balance performance. Unlike every other single distributor shoving a catalog in front of your face displaying the exact same buzz words, terminologies, and propriety terms each manufacturer has “made up” to puzzle us persevering lab staffs, we cut through the noise for you. We can help you save valuable time and purchase the right Precision Scale for your needs whether it is with the Ohaus EX423 or not.

How accurate and sensitive is the Ohaus EX423 Precision Scale in comparison with other 1.00mg readability balances available?

EX423 Readability

With a readability of 1.00mg, the EX423 can handle most simple weighing tasks within your lab. The EX423 is part of the Ohaus Explorer series best for applications like laboratory testing and chemical analysis.

How precise is the EX423 Precision Scale against other 1.00mg readability balances?

EX423 Repeatability

The EX423 offers 1.0mg repeatability. Often presented as standard deviation and important to persistently producing the same results when the same weight is placed on the lab balance multiple times, repeatability is one factor that can affirm accuracy and validity.

What is the response time of the EX423 Precision Scale contrary to other 1.00mg readability balances?

EX423 Stabilization Time

The time that the EX423 balance takes to stabilize from the time you put your sample on it and displays results is 1.0 second.

Looking for a PDF quote for the Ohaus EX423 Precision Scale?

Easily use the Instant Quote tool above and you will get a quote emailed to your inbox within 30 seconds! We promise no high pressure sales representatives calling you.

How do you calibrate the EX423?

Prevent notable changes when it comes to measuring results. Easily calibrate the Ohaus EX423 thanks to its intuitive Internal Calibration.

What size of samples can I weigh on an EX423 with a 1.00mg readability range?

EX423 Pan Size

With a 130mm maximum diameter pan size

Weighing Capacity

Offering a weighing capacity of 420g, the EX423 is capable of working with relatively larger samples if compared with other models.

Other remarkable features of the Ohaus EX423 Precision Scale

EX423 Display ScreenDocument measurements without the need to have the EX423 wired to a computer through its intuitive Touch display.Accreditations of the Ohaus EX423 Precision Scale

The EX423 is compliant to ISO, GLP, GMP regulations.

Frequently Asked Questions for the EX423 Precision Scale:

Will the EX423 connect to your printer?

Since the EX423 does have a USB connection, you can attach it to a printer. If you already have an RS232 printer, it will also work on the included RS232 port of the EX423.

Will the EX423 connect to your lab's network?

The EX423 does not have a built in Wi-Fi. But the EX423 does have a built in Ethernet port so you can connect it over your existing wired network.

Do you have any questions about the Ohaus EX423 Analytical Balance that we missed answering for you here?

Don't hesitate to ask us via live chat to the right, our Contact Us page, or email help@lab.equipment and we will get back to you as soon as we can with a friendly response.

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

Conducting its first operations in 1907, Ohaus is a leading provider of dependable balances and scales capable of addressing the most complex weighing challenges. Utilizing the latest technologies available, Ohaus delivers intuitive and highly-advanced analytical, precision, and portable balances, as well as a wide range of lab equipment and instruments. Ohaus manufactures the most precise and accurate lab balances catering to the laboratory, industrial, retail, food, and education industries. Headquartered in New Jersey, USA, Ohaus is regarded as an undisputed leader in the laboratory equipment industry with unsurpassed performance in the global market.

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Ethernet: Yes
Mobile App: No
[Lab Balance] Bluetooth: No
[Lab Balance] Capacity (g): 420
[Lab Balance] Display: Touch
[Lab Balance] GCP: No
[Lab Balance] GLP: Yes
[Lab Balance] GMP: Yes
[Lab Balance] ISO: Yes
[Lab Balance] Internal Calibration: Yes
[Lab Balance] PS2: No
[Lab Balance] Pan Size (mm): 130
[Lab Balance] RS-232: Yes
[Lab Balance] Readability (mg): 1
[Lab Balance] Repeatability (mg): 1
[Lab Balance] Stabilization Time (sec): 1
[Lab Balance] USB: Yes
[Lab Balance] WiFi: No

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