OPTIZEN Alpha can grasp the quantitative characteristics such as density or purity by measuring transmittance or optical density according to wavelength of sample in the range of ultraviolet rays and visible ray.

OPTIZEN SERIES can be utilized from not only a general analysis experiment to but also a specialized research field and guarantee accurate measurement and excellent reproducibility, accordingly offer reliable results in the various fields such as environment, biotechnology, chemistry, etc.

Main Charateristics
  • A world-class measurement performance
  • Wide-size color screen (ALPHA: 8”)
  • Various cell compatibility and fast cell type choice
  • Automatic measurement of lots of samples by equipping multi-cell.
  • Convenient voice service and volume control
  • Emotional design

Product details

  • The previous single beam type spectrophotometer has a weak point of error occurrence in measuring a sample, because of the movement of a light source by time lag in measuring the strength of between a reference light and a light from sample.
  • To solve the problem, OPTIZEN Alpha was designed as a double-beam type spectrophotometer.
  • The system utilizes an additional reference beam to improve the measurement performance by compensating the intensity fluctuation of its light source.
Optizen alpha
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Product Information

  • Offering self-diagnosis function
  • Easily and quickly call up the information that is being measured or analyzed by registering it in you favorites.
  • Changing to the remote mode and then can link it with PC by using OPTIZEN VIEW.
  • The measurement is possible in the optimal condition by checking the equipment’s operation time, lamp warm up condition and accumulated using time in real time.
  • OPTIZEN Alpha’s login function can prevent the measured data from leaking to many and undesignated persons.

Product Qualification

Photometrics System Double-beam type
Monochromator Czerny-Turner type with 1200 lines/nm blazed grating
Light Source Tungsten Halogen Lamp & Deuterium Lamp
Lamp interchange Wavelength 340~410 nm (Default 370 nm)
Detector Silicon Photodiodes
Spectral Bandwidth 1 nm (190 to 1100 nm)
Wavelength Range 190 to 1100 nm
Wavelength Setting 0.05 nm
Wavelength Accuracy ±0.3 nm (For entire range)
±0.1 nm (656.1 nm)
Wavelength Repeatability <± 0.1 nm
Slew Rate About 8,800 nm/min
Scan Speed max 6,000 nm/min
Photometric Range Absorbance : -4 to 4 Abs
Transmittance : 0 % to 400 %
Photometric Accuracy ±0.002 Abs at 0.5 Abs
±0.004 Abs at 1.0 Abs
±0.006Abs at 2.0Abs
Photometric repeatability ± 0.0002 at 0.5 Abs
± 0.0006 at 1.0 Abs
± 0.001 at 2.0 Abs
Baseline stability < 0.0003 Abs/h
Baseline flatness <± 0.0005 Abs
Stray light < 0.02 % Nal at 220 nm, NaNO₂ at 340 nm
Standard cell Holder Autometic Rotary type 8-position Multi-Cell Holder
Operating system(OS) Windows 10 (Embedded PC);
Display 8-inch color LCD with touch screen
Power Requirement 100~240 V; 50~60 Hz
Dimensions(WxDxH) 520(W)x500(D)x200(H)
Weight(kg) 14 kg
PC Software (optional) OPTIZEN View for Windows®
(optional) OPTIZEN Secure™


Experience faster and more convenient OPTIZEN Alpha.

One-touch Cell Holder Cover
One-type touch cell holder can easily be opened and closed.
Log-in management Function
Can protect device and measuring date safely through Log-in management Function using by ID and Password.
Network Printer Support
Data can be printed out by connecting to the main unit without installing a printer driver.
Remote Control
OPTIZEN VIEW can easily analyze data, using fast result value acquisition and post-processing functions.
User Convenience
All functions of existing PC software are installed in OPTIZEN Alpha, making it faster and more convenient.
Incredible Speed
Fast and flexible software delivers the best result with analytical speeds up to 1.5 times that of existing products.
Rapid Service
Quick services are available as OPTIZEN Alpha is made in Korea from design conception to manufacturing based on the unique technology of K LAB Co., Ltd.
Extensive Scalability
OPTIZEN Alpha is designed for high-precision/high-resolution measurement in widebands from ultraviolet to visible light and can be used in various applications.
Compact Size
Compact OPTIZEN Alpha enhances the efficiency of the experimental space.
Sensuous Design
Now, you can enjoy a greater level of pleasure with a sensuous design.
Installation of a Powerful Controller
Equipped with an Intel(R) Celeron(R) Quad Core Processor N3160 it includes a 32GB default storage capacity and data backup using USB memory.
8-inch Color Touch Screen LCD
Delivers rich visual information with a highresolution color screen. Convenience has been improved by applying a touch screen.
USB 4-port Installation and Support
OPTIZEN Alpha supports up to 4 USB ports, allowing various peripheral devices to be connected.
Multi-cell Adoption by Default
More samples can be automatically measured with the built-in multi-cell as standard.
Various types of accessories such as Flow Cell, Peltier, and Sipper can easily be used.



OPTIZEN Alpha has an intuitive interface that allows accurate data measurement and analysis with a single touch, focusing on user convenience. The measurement results are also easy to be edited and exported. The Alpha includes a variety of features optimized for laboratory equipment.

OPTIZEN Alpha Favorite

By registering the information that is being measured or analyzed, or has been completed, you can easily and quickly call up the information to perform tasks.

Measured Value Monitoring Function

You can always check measured values in real time.

OPTIZEN Alpha Value Monitoring Function
Quick Cell Type Selection

Measurement monitoring is possible by selecting a cell type without entering the mode. The icon of the cell type in the quick menu changes according to the cell type status or position, so that the current status of the cell can be easily checked.

Lamp Preheating Status Check Function

You can check the operating time of the equipment, the preheating status of the lamp and the cumulative operating time in real time and measure in the optimal status.

Provision of Data Security

Measured data are saved in the extended memory by default to prevent data loss due to equipment damage. They can also be saved in an external device by using the backup function.

Touch Graph Zoom-In/Out

By providing a drag-select method, it is possible to set a magnification range, and the user can easily enlarge the desired section. The auto-scale function is implemented.

Provision of Useful Control Mode

OPTIZEN Alpha can be directly measured from the instrument or remotely from a PC. In a network environment, analysis results can be viewed on a PC without a limit of work space.

Convenient Data Management

By storing data in the extended memory and USB, the user can perform various tasks such as switching data, applying special conversion expressions and exporting to Excel in PC.

Volume Control Function

The volume of the instrument (16 levels) can be adjusted to suit the laboratory environment.

OPTIZEN Alpha Modes for Measurement

Modes for Measurement

  • Photometric Mode
    Absorption information measurement mode

    This mode allows you to measure the absorbance and concentration of a sample at a specific wavelength.
  • Quantitation Mode
    Quantitative analysis mode

    This mode allows you to quantitatively analyze a sample using the calibration curve.
  • Spectrum Mode
    Absorption spectrum acquisition mode

    This mode allows you to acquire the absorption or transmission spectrum in the desired wavelength band.
  • Kinetics Mode
    Temporal absorption information change confirmation mode

    This mode allows you to measure the absorbance or transmittance of a sample over time.



Optizen Alpha is designed as a double beam type spectrophotometer. Therefore we could improve repeatability, accuracy and safety of date.

OPTIZEN Alpha performance
Wavelength accuracy & repeatability

We guarantee wavelength accuracy as <± 0.3 nm and wavelength reproducibility as <± 0.1 nm at all Wavelength range.

Spectra and peak results were obtained using NIST traceable Holmium Oxide Glass filters.

Specified Value (nm) 279.35 360.85 453.60 536.40
Measured value (nm) 279.45 361.05 453.75 536.30
OPTIZEN Alpha performance
Baseline Flatness

Optizen Alpha offer high Baseline Flatness at all Wavelength range.

Baseline Flatness (190 - 1100)

Measured valueTolerance
P-P: 0.00002 Abs<± 0.0005 Abs
OPTIZEN Alpha Noise

Optizen Alpha guarantee Noise Level same as <± 0.00005 Abs at 700 nm and <± 0.00008 Abs at 240 nm.

Noise level measurement
Wavelength MeasuredValueTolerance
700 nm
(Tungsten & Halogen lamp)
P-P: 0.03 mAbs
RMS: 0.008 mAbs
P-P: <± 0.30 mAbs
RMS: <± 0.05 mAbs
240 nm
(Deuterium lamp)
P-P: 0.07 mAbs
RMS: 0.022 mAbs
P-P: <± 2.4 mAbs
RMS: <± 0.4 mAbs
OPTIZEN Alpha accuracy
Photometric accuracy & repeatability

OPTIZEN Alpha guarantees photometric accuracy of less than ±0.005 Abs (at 1.0 Abs) and photometric repeatability of less than ±0.0006 Abs(at 1.0 Abs) with exceptional noise characteristics.

Measured valueTolerance
P-P: 0.00002 Abs<± 0.0005 Abs
OPTIZEN Alpha Noise
Baseline stability

There could be a tremor at measuring result by drift phenomena of light source when turn on the OPTIZEN Alpha. We recommend have preheating time about an hour in case of high-accuracy measurement. We guarantee less than 0.0003 Abs in this case.

Baseline stability measurement
Wavelength Measured Value Tolerance
700 nm
(Tungsten & Halogen lamp)
0.05 mAbs/hr Within 0.3 mAbs/hr
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