MicroDigital Co., Ltd.
Biomedical System



Introducing the Ubi-800: Advanced Double Beam UV/Vis Spectrophotometer

The Ubi-800 is a cutting-edge UV/Vis spectrophotometer featuring a robust double beam structure and a large 10-inch touch screen. With its low stray light and high-resolution optical system, this instrument ensures stable performance, precise measurements, and powerful functionalities. It excels in a wide range of fields, including scientific research and quality control.



Key Features:

-       Enhanced User Experience: Utilize the 10-inch touch screen for intuitive navigation and seamless operation.

-       Accelerated Sample Measurement: Benefit from the double beam spectrophotometer's advanced technology, enabling faster sample analysis.

-       Automatic 8 Cell Holder: The standard inclusion of an automatic 8 cell holder allows for efficient measurement of a large number of samples with automation.

-       Automatic System Calibration: Maintain accuracy over extended periods of use with the automatic system calibration function, recovering deviations and ensuring reliable results.

-       Convenient Data Storage: Easily store measurement data by connecting a USB memory device to the USB port, streamlining data management and transfer.


Optional Accessories:

-       All-in-One 8-Cell Holder: Provides flexibility for basic installations and accommodates 3.5ml cuvettes, as well as 16mm, 25mm, and 1-inch test tubes.

-       Film Cell Holder: Enables accurate measurement of solid-state samples that transmit light, such as optical films or slide glasses.

-       Test Tube Holder: Compatible with test tubes of varying diameters, offering convenience and versatility for sample analysis.

-       Micro Volume Cell Holder: Designed for precise measurements of samples with volumes less than 500µl.

-       Universal Single-Position Cell Holder: Facilitates measurements using a 50mm long pass-length cuvette.

-       Peltier System Cell Holder: Controls temperature from 15℃ to 65℃ while measuring using a 50mm cuvette.

-       Reflectance Attachment: Enables the measurement of reflectance on flat slide glass samples.


Software Features:

-       Photometry: Measure absorbance (Abs) and transmittance (%T) of samples at specific wavelengths.

-       Quantitation: Determine sample concentration through concentration measurement using a standard curve.

-       Standard Curve: Create a customized standard curve using standard samples for accurate concentration analysis.

-       Kinetic: Monitor changes in absorbance (Abs) or transmittance (%T) over time, allowing dynamic analysis.

-       Wavelength Scan: Detect changes in absorbance (Abs) or transmittance (%T) within a specified wavelength range and interval.

-       Multi Wavelength: Simultaneously measure multiple wavelengths, enhancing efficiency and expanding analytical capabilities.

-       DNA/Protein Analysis: Simplify measurements of DNA and protein with the built-in analysis methods (Micro Volume cell holder required).


Product Specification


Wavelength Range

190 - 1100nm



Wavelength Accuracy

±0.1nm (D2 656.1nm), ±0.3nm full range

Wavelength Reproducibility


Photometric Accuracy

±0.2%T (0-100%T)

±0.001Abs (0-0.5Abs)

±0.004Abs (0.5-1.0Abs)

Photometric Repeatability

≤0.1%T (0-100% T)

0.001Abs (0-0.5Abs)

0.002Abs (0.5-1.0Abs)

Photometric Range

0 ~ 200%T, -0.3 ~3.0Abs, 0-9999C


≤0.0005Abs/h @ 250nm, 500nm, 2hr warm-up

Stray Light

≤0.01%T @ 220nm, 360nm

Data Output Port

USB port


Deuterium Lamp & Tungsten Halogen Lamp


Silicon Photodiode


220V, 50 Hz

Dimension (L x W x H)

63 × 43 × 21 cm