Secondhand Comen CM100 1 Channel ECG Device

Objective AI Report

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Report date: 21.11.2025

Comen CM 100 Electrocardiograph Device Analysis Report

Device Identification, Brand and Model

The device in the analyzed visuals is a portable Electrocardiograph (ECG) device used for medical diagnostic purposes. Upon examining the type labels on the front face’s bottom left corner and the rear face of the product, its brand has been definitively identified as COMEN and its model as CM 100 with 100% certainty. The phrase “Electrocardiograph” is clearly visible on both the front face and the rear label of the device.

Areas of Use

The COMEN CM 100 is a professional medical device used to record, monitor, and report the electrical activities of patients’ hearts (ECG). The accessories in the visuals indicate that the device is equipped for standard ECG recordings.

General Condition and Originality

The device is visually clean and in a preserved condition. No yellowing or significant discoloration has been observed on the plastic casing. The manufacturer information, serial number format, and workmanship quality on the rear label indicate that the product is an original COMEN item. The presence of a calibration label on the front handle of the device suggests that the product has been previously used in a professional setting (second-hand) but is well-maintained.

Physical Deformation and Cosmetic Examination

Upon examining the product’s outer casing:

• No deep scratches, cracks, breaks, or dents have been detected on the front panel and body.
• The joints of the plastic components appear regular.
• While no deformation preventing use is visible on the screen surface, no comment can be made regarding pixel status as the device is turned off.
• The rubber feet on the bottom of the device are complete and intact, with no missing parts observed.

Mechanical and Electronic Components

Mechanical and electronic details based on visual inspection are as follows:

• Keypad: The keypad, observed to be of membrane type (On/Off, Menu, Print/Stop, arrow keys, etc.), appears physically sound. No tears or collapses have been observed.
• Printer Section: The thermal printer cover located on the right side is in place, and its mechanical integrity appears solid.
• Ventilation: The ventilation grilles on the back of the device are clean, with minimal dust accumulation.
• Connection Ports: The power input and grounding screw located at the rear are physically undamaged.

Accessories and Box Contents

The accessories presented with the device in the visuals and found within the box are as follows:

• 1 unit COMEN CM 100 ECG Main Unit.
• 1 set ECG patient cable (Lead wire).
• 4 Limb Clamps (Blue, extremity electrodes).
• 6 Chest Electrodes (Vacuum bulb type, grey).
• 1 black power cable (Schuko plug type).
• 1 grounding cable (Yellow-green, visible in the transparent bagged box compartment).
• 1 roll of thermal printer paper (For spare or use).
• User manual or documentation (Documents with “COMEN” logo are visible under the cables).

Label Information and Technical Data

Technical data and identification information obtained from the label on the rear side of the device are as follows:

• Model: CM 100
• Manufacturer: Shenzhen Comen Medical Instruments Co., Ltd.
• Serial Number (SN): 10150512019A
• Manufacturing Date: 2015.05.26 (May 26, 2015)
• Power Input: 220V~, 50Hz/60Hz
• Power Consumption: 35VA
• European Representative (EC REP): Lotus Medical Equipment Limited (Ireland)

Furthermore, a green label belonging to the company “ERENLER KALİBRASYON” is located on the front handle. This label displays the code “ERN-5057”, with the Calibration Date (CD) specified as 21.01.2016 and the Validity Date (VD) as 21.01.2017. This information proves that the device was actively used in the past and underwent periodic checks.

Battery Status

There is a separate cover and label for the battery on the rear of the device. According to the information in the visual:

• Type: Rechargeable Lithium Battery (Lithium Battery Rack).
• Voltage: 14.4V
• Capacity: 1600mAh

Although it cannot be determined from the visuals whether the battery is physically swollen, the battery cover is properly closed. The current charge retention capacity of the battery cannot be included in the visual analysis.

Screen and Interface Analysis

The device features an LCD screen, estimated to be monochrome. Since the device was photographed in an off (unpowered) state, no warnings, error codes, or menu displays are visible on the screen. LED status indicators (Mains, Battery, etc.) are present next to the screen.

Potential Malfunction Risk and Conclusion

Based on visual inspections, no serious potential malfunction risk such as broken parts, corrosion (rusting), cable stripping, or traces of liquid contact detectable externally has been observed on the device. However, due to the product being manufactured in 2015, there is a possibility that its internal battery may have reached the end of its life. Furthermore, considering that the calibration date expired in 2017, a new calibration and functional test may be required before professional use. The device and its accessories appear clean, well-maintained, and complete in terms of overall condition.