Explorer EX623 Precision Scale from Ohaus

Readability (mg) 1
Capacity (g) 620
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 is going to make things a lot easier for you! Learn how the Ohaus EX623 suits your needs. If it does not make your cut, read about our review, FAQ, and comparison of the EX623 to other Precision Scales below to get the perfect unit for your protocols.

Since Lab.Equipment carries 185 Precision Scales from all 8 Precision Scale manufacturers such as Ohaus, this is the only site you will find true descriptions carefully written for you, providing apples-to-apples comparisons of analytical balance performance. Not like other single distributor pushing a product catalog in front of your face displaying the exact same buzz words, jargons, and propriety lingoes each manufacturer has “made up” to puzzle us dedicated lab staffs, we filter out the unnecessary for you. We can help you save precious time and get the most fit Precision Scale for your needs whether it is with the Ohaus EX623 or not.

How accurate and sensitive is the Ohaus EX623 Precision Scale in comparison with other 1.00mg readability balances available?

EX623 Readability

With a readability of 1.00mg, the EX623 is capable of handling most simple weighing tasks within your lab. The EX623 is part of the Ohaus Explorer series recommended for applications such as laboratory testing and chemical analysis.

How precise is the EX623 Precision Scale in comparison with other 1.00mg readability balances?

EX623 Repeatability

The EX623 offers 1.0mg repeatability. Often expressed as standard deviation and important to persistently generating the same results when the same weight is placed on the lab balance several times, repeatability is one factor that can show accuracy and validity.

What is the response time of the EX623 Precision Scale against other 1.00mg readability balances?

EX623 Stabilization Time

The time that the EX623 balance takes to stabilize from the time you put your sample on it and displays results is 1.0 second.

Do you need a PDF quote for the Ohaus EX623 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 EX623?

Avoid noticeable changes when it comes to measuring results. Easily calibrate the Ohaus EX623 thanks to its intuitive Internal Calibration.

What size of samples can I weigh on an EX623 with a 1.00mg readability range?

EX623 Pan Size

With a 130mm maximum diameter pan size

Weighing Capacity

The EX623 provides a weighing capacity of 620g capable of handling relatively larger samples compared to other models.

Other noteworthy features of the Ohaus EX623 Precision Scale

EX623 Display ScreenThe EX623 comes with an intuitive Touch display, easily documenting measurements without the need to have the unit connected to a computer. Accreditations of the Ohaus EX623 Precision Scale

The EX623 is compliant to ISO, GLP, GMP regulations.

Frequently Asked Questions for the EX623 Precision Scale:

Can I connect a printer to the EX623?

Since the EX623 does have a USB cable port, you can connect it to a printer. If you already have an RS232 printer, it will also work on the included RS232 port of the EX623.

Can the EX623 be connected to my lab's network?

The EX623 does not have a built in Wi-Fi. But the EX623 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 EX623 Analytical Balance that we missed answering for you here?

Feel free to ask us through the live chat to the right, our Contact us page, or email us at help@lab.equipment and we will get back to you asap with 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): 620
[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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