Secondhand Nihon Kohden Neurofax EEG-1200K 32 Channel EEG Device

Objective AI Report

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Report date: 31.01.2026

Nihon Kohden Neurofax EEG Device Analysis Report

Device Identification

The examined visuals belong to an Electroencephalography (EEG) device, which is a medical diagnostic system. The device consists of a main unit used to record brain waves, an amplifier (electrode connection box), a photic stimulator (light stimulation system), a medical-grade computer, a monitor, a printer, and a mobile stand (trolley) that carries all these components. The system has an integrated structure.

Brand and Model Analysis

Upon examining various components on the device, the following brand and model information has been definitively identified:

• Main Brand and Series: The system belongs to the Nihon Kohden brand and the Neurofax product family, as clearly seen on the main unit and headbox.
• Photic Stimulator Unit: The NIHON KOHDEN brand and LS-120 model number are clearly legible on the box controlling light stimulation.
• Monitor: The monitor used with the device is NEC branded.
• Printer: The laser printer located on the system’s lower shelf is Xerox branded.
• Isolation Unit: The label on the power unit on the lower shelf shows the phrase ISOLATION UNIT and model code SM-N533.

Areas of Use

This device is used in the fields of Neurology and Clinical Neurophysiology. Its primary purpose is to record the brain’s electrical activity (EEG recording) via electrodes placed on the scalp. It plays a critical role in the diagnosis of epilepsy, sleep disorders, encephalitis, and other brain function disorders. The photic stimulator hardware shown in the visual is used to provide intermittent light stimulation to test conditions such as photosensitive epilepsy.

General Condition and Physical State

The general appearance of the device suggests it is used but clean and well-preserved.

• Casing and Stand: No noticeable deep scratches or rust are observed on the paint of the blue and white mobile transport stand. The shelves appear sturdy.
• Deformation: Yellowing on plastic parts is minimal. No major dents or dings have been detected on metal surfaces. However, superficial scuff marks and normal wear due to use are present on the wheels and support feet.
• Cleanliness: The device generally appears dust-free and well-maintained. Cables are arranged, and there is no cluttered appearance.

Component and Part Analysis

Amplifier and Connection Box (Headbox)

The connection box, one of the most critical parts of the system, is mounted on an arm on the left side. On it:

• Electrode input sockets compatible with the 10-20 system,
• Impedance control knob and indicator LEDs,
• SpO2/CO2 and Respiration (RESP F, C, A) sensor input ports,
• DC input sockets are located.
• Labels show no wear, and the text is clear and legible.

Photic Stimulator System

It consists of a lamp unit located at the end of a long, articulated arm on the right side and the LS-120 control unit located on the middle shelf. The “CAUTION” warning labels on the lamp arm are in place. Its cable is neatly wrapped around the arm. The “SINGLE” and “POWER” lights and the manual flash trigger button on the control unit’s front panel appear intact.

Computer and Isolation Unit

On the lower shelf, there is a main computer unit (PC) with a Nihon Kohden logo and a silver-colored metal casing. Its front panel features a DVD-RW drive, USB ports, and audio input-output. The adjacent isolation transformer is positioned to protect the system from mains fluctuations and ensure patient safety; it includes a 4.5A breaker switch.

Accessories and Consumables

The accessories provided with the device in the visuals are:

• Electrode Cables: Disk electrode sets with colored cables are visible in a bag on the table.
• Conductive Paste: A box of “NEURON” branded conductive EEG paste is present on the table.
• Peripherals: A black wired keyboard and mouse are present.
• Cables: Gray, thick, and shielded connection cables are attached to and wrapped around the device.

Quantity Information

The visual shows 1 complete EEG system (a set consisting of a monitor, PC, headbox, photic lamp, stand, printer, and isolation unit). Additionally, 1 keyboard, 1 mouse, 1 box of consumables, and a bagged cable set are present.

Originality

The Nihon Kohden logos on the product, the font of the labels, the Neurofax notations, and the compatibility of the parts with each other (standard medical cart structure, special isolation unit, etc.) indicate that the device is entirely original. No assembled or aftermarket casing structure has been observed.

Potential Malfunction Risk

During the visual inspection, no signs of malfunction such as burns, breakage, liquid contact, or severe oxidation were found on the device. No peeling or breakage is observed on the outer insulation of the cables. The product has been visually assessed as ready for operation and in good condition.