Secondhand Biosan TDB-120 Dry Block Thermostat

Objective AI Report

Disclaimer: I am Medbidding AI. I am an unbiased AI robot. I have generated the following report automatically (without human intervention). The report was prepared by examining only the product images in the ad in detail. The report may contain errors. Medbidding and other parties disclaim any liability that may arise from this report or reliance on its contents. If you have any questions or notice an error in the report, please contact Medbidding engineers.

Report date: 24.01.2026

Biosan TDB-120 Dry Block Thermostat Analysis Report

Brand and Model Identification

As a result of a detailed examination of the device in the image, it has been determined that the brand and model are clearly indicated on the device’s front panel. The product’s brand is identified as Biosan, and its model as TDB-120. The device’s type designation, “Dry Block Thermostat”, is located immediately below the brand name. These markings are not erased, are clear and legible.

Device Description and Areas of Use

The analyzed device is a dry block heater (thermostat) used in laboratory environments, enabling the incubation of biological or chemical samples at precise and constant temperatures. The “Dry Block Thermostat” inscription on it and the time/temperature settings on the control panel confirm the device’s basic function. Such devices are commonly used in microbiology, biochemistry, and genetics laboratories for processes such as enzyme reactions, blood analysis, and DNA denaturation. The device in the image is the main unit; however, the metal block unit where tubes would be placed should be under the device’s top lid (this part is not directly visible in the image either because the lid is closed or the block is not installed).

General Condition and Originality

Considering its body quality, panel design, button placement, and the way the brand logo is processed, the product gives the impression of being an original Biosan product. The workmanship and material quality comply with industrial standards. The overall appearance of the device is clean; no elements that disrupt its aesthetic integrity are noticeable.

Quantity Information

A total of 1 unit of the Biosan TDB-120 device is present in the image. No external accessories, blocks, spare parts, or a second device are within the frame.

Physical and Cosmetic Condition

The device’s outer casing consists of a gray plastic body and a blue control panel covering the upper part.

• Casing: No visible cracks, breaks, deep scratches, or dents have been detected on the device casing. The corner lines are smooth.
• Surface: No discoloration or significant yellowing has been observed on the surface; the shades of blue and gray maintain their vibrancy.
• Cleanliness: Although the product appears clean, detailed hygienic cleaning may be required as it might have come from a laboratory environment.

Electronic Components and Screen Analysis

The front panel features an interface for electronic controls. Although the device is shown in the off position in the image, preventing the screen’s functionality from being tested, its physical integrity has been examined.

• Screen: An LCD screen capable of displaying single-line or double-line information is present. No cracks or fractures are visible on the screen glass.
• Writings Around the Screen: There are indicator texts around the screen guiding the user:
  • Time (hr:min): Duration setting (Hours:Minutes).
  • Temperature (°C): Temperature setting (Degrees Celsius).
  • On the left side, “Set” (Adjusted) and “Actual” (Current value) indications are located.

Mechanical Components and Control Buttons

There are a total of 6 control buttons on the front face of the device. The symbols and texts on these membrane-type buttons are not deformed and are completely legible. No tears or collapses have been observed.

• Time Control: 2 buttons represented by up and down arrow keys.
• Temp. (Temperature) Control: 2 buttons represented by up and down arrow keys.
• Function Keys: “Run” and “Stop” buttons highlighted in yellow.

Accessories and Connection Points

The image does not show the power cable or adapter required for the device to operate. Only the main body of the device is visible. Since the rear part of the device is not included in the image, no comments can be made regarding the power input or other socket connection points (such as RS-232, if any).

Safety Warnings and Labels

Two triangular safety warning labels with yellow backgrounds are affixed to the device’s upper left blue lid:

• First label: General hazard or caution warning (exclamation mark).
• Second label: Hot surface warning (steam/temperature symbol). This label indicates that the upper part of the device becomes hot during operation and should not be touched.

Battery Status

The device is typically laboratory equipment that operates with mains electricity (socket connection). There is no visual indication (battery indicator, battery cover, etc.) that it has an internal battery.

Potential Malfunction Risk

As a result of visual analysis, no critical malfunction indicators such as broken parts, traces of liquid contact, burn marks, or severe impact damage were found on the device. The device appears to be in good external condition (“Lightly Used” or “Clean Second Hand”). However, its electronic functionality, heating performance, and the pixel status of the LCD screen cannot be verified through visual inspection.

Missing Information and Notes

Technical information such as the device’s serial number, year of manufacture, and electrical power values (Volt/Watt) is typically located on the rear or bottom label of the device and is therefore not visible from this perspective. Furthermore, its invoice, user manual, or warranty certificate are not present in the image.