Portable temperature-controlled transport refrigerator for medicines, vaccines and biological materials – cooling, heating, temperature stabilization and built-in battery

Professional portable transport refrigerator with compressor cooling, active heating and a battery installed inside the unit. Designed for transporting temperature-sensitive products, including medicines, vaccines, pharmaceutical preparations and selected biological and laboratory materials.

Refrigerator, freezer and warming chamber in one device. The ET18MEDH, with an approximate usable capacity of 16 litres, provides active cooling, sub-zero temperatures and controlled heating. It can function as a portable temperature-controlled chamber or active thermostatic transport container.

The electronic controller automatically selects cooling or heating depending on the chamber temperature and selected setpoint. Forced-air circulation and an additional digital temperature sensor support temperature stabilization and more uniform temperature distribution.

The programmable temperature setpoint range from −15°C to +40°C allows different configurations, including restricted user setpoint ranges such as +2°C to +8°C or +20°C to +37°C.

The unit can operate at ambient temperatures from −10°C to +43°C. The ability to achieve and maintain a specific temperature depends on ambient conditions, the temperature and quantity of the load, and the device configuration.

The built-in battery enables operation without an external power connection. An additional external battery can be used to extend operating time.

Key advantages

• Compressor cooling – active temperature reduction, including below 0°C, without frozen cooling packs.
• Active heating – raises and maintains the selected temperature in colder environments.
• Automatic temperature stabilization – electronic control of cooling, heating and fan operation.
• Forced-air circulation – supports more uniform temperature distribution inside the chamber.
• High-resolution digital temperature sensor used by the control system.
• Individual temperature range configuration – adjustable lower and upper user setpoint limits.
• Clear control panel – temperature display and setpoint adjustment.
• Settings memory – retains the configuration after restarting the unit.
• Built-in battery included – operation without an external power source.
• Optional additional external battery – extends operating time.
• 12 V DC and 230 V AC power supply via an adapter – suitable for vehicle and stationary operation.
• Optional Wi-Fi temperature data logger – monitoring, measurement history, charts and reports.
• Optional temperature alarms – configurable thresholds and alarm signalling.

Applications – temperature-controlled transport

The ET18MEDH can be used in pharmaceutical, laboratory, diagnostic, veterinary and technical applications requiring active temperature regulation.

• Transport of medicines and vaccines – products requiring specific temperature conditions, e.g. +2°C to +8°C.
• Transport of insulin and injectable medicines – selected hormones, antibiotics, interferons, adrenaline and other products according to the manufacturer's requirements.
• Transport of pharmaceutical and immunological products – applications in pharmacies, hospitals and pharmaceutical wholesalers.
• Transport of biological and diagnostic samples – selected laboratory materials requiring controlled temperatures.
• Transport of microbiological materials – samples, cultures and research materials according to applicable procedures.
• Transport of semen samples – configurable temperature conditions for selected andrology and biological materials.
• Transport of veterinary materials – medicines, vaccines and diagnostic samples.
• Transport of products requiring sub-zero temperatures – subject to confirmation of the required operating conditions.
• Transport of products requiring heating – selected materials requiring positive temperatures, e.g. +25°C or +37°C.
• Mobile laboratories, ambulances and specialized vehicles – field applications and transport between facilities.

Individual configuration also makes it possible to consider specialized research applications involving the transport of selected tissues and biological materials.

Important: The transport of organs and tissues intended for transplantation requires a separate technical assessment, validation and confirmation of applicable procedural and legal requirements. Maintaining a selected temperature alone does not establish suitability for transporting transplant organs.

Cold chain – temperature-controlled transport

The refrigerator can help maintain cold chain continuity during the transport of medicines, vaccines, pharmaceutical preparations and other temperature-sensitive products.

Active cooling and heating provide temperature regulation without relying on passive cooling packs. The built-in battery power supply allows the unit to continue operating while being transferred between a vehicle and the delivery location.

The optional data logger enables temperature recording during transport, analysis of measurement history and report generation.

For products subject to specific cold chain requirements, the appropriate temperature profile must be verified for the intended application.

Individual temperature configuration

The ET18MEDH offers a programmable temperature setpoint range from −15°C to +40°C, depending on the prepared device configuration.

The user-accessible setpoint range can also be restricted, reducing the risk of accidentally selecting a temperature outside the permitted limits.

Example configurations:

• +2°C to +8°C – an example range for selected medicines, vaccines and pharmaceutical preparations.
• +20°C to +37°C – an example range for selected biological, laboratory and diagnostic materials.
• Other individually configured ranges – according to the requirements of the transported product.

For applications requiring controlled heating, the unit can be configured to operate at a setpoint such as +25°C or +37°C, subject to verification of the required performance.

For example, andrology and microbiology laboratories may consider the unit for transporting selected biological samples requiring controlled temperature conditions.

Technical settings and regulation parameters are accessible through a password-protected service menu.

The available setpoint range does not guarantee that every temperature can be maintained under all ambient conditions. Temperature requirements may vary between different biological materials.

Built-in battery – specifications and operating time

The ET18MEDH is equipped with a removable lithium-ion battery installed inside the refrigerator. The battery is included as standard and allows the unit to operate without a vehicle or mains power connection.

Battery specifications:
- Technology: Lithium-ion (Li-Ion)
- Rated capacity: 170 Wh (15,600 mAh)
- Nominal voltage: 10.9 V
- Design: Removable, installed inside the unit
- Charge level indicator: 4 LED indicators
- Battery operating temperature: −20°C to +60°C
- Battery charging temperature: 0°C to +45°C

Operating time under test conditions:

• Ambient temperature: +21°C
• Temperature setpoint: +4°C
• Operating time on the internal battery: approximately 6 hours

Extended operating time: An additional external battery can be used to increase independence from mains or vehicle power.

Actual operating time depends on ambient temperature, the selected setpoint, the temperature and quantity of the load, battery condition and operating conditions. The specified battery operating and charging temperatures apply to the battery itself, not to the complete refrigerator. Operating time with an additional battery depends on its specifications and the power supply configuration.

Vehicle, mains and battery power supply

The refrigerator can be powered from a 12 V DC vehicle electrical system in a car, ambulance or specialized vehicle, or from a 230 V AC mains supply using an appropriate power adapter.

The built-in battery enables operation without a connected power cable, for example when transferring the unit between a pharmacy, laboratory, vehicle and final destination.

Optional Wi-Fi module and temperature data logger

The refrigerator can be additionally equipped with a Wi-Fi module and temperature and operating parameter data logger. The system enables device monitoring, temperature analysis and documentation of temperature conditions during transport.

The local web interface can be accessed from a smartphone, tablet or computer after connecting to the device's Wi-Fi network.

The interface operates without an Internet connection and without installing an additional application.

Main functions:

• Live monitoring – temperature setpoint, chamber temperature and current operating status.
• Temperature control – adjustment of the setpoint within the permitted range.
• Component monitoring – operating status of the compressor, heating system and fan.
• Measurement history – review of recorded temperature values.
• Measurement calendar – selection of dates with available recorded data.
• Interactive charts – zooming, panning and detailed analysis of temperature trends.
• Reporting period selection – recent hours, days or a selected date range.
• Temperature reports – setpoint and measured values, including minimum, maximum and average temperatures.
• PDF, CSV and XLSX export – data archiving and further analysis.
• Extended reports – additional voltage charts and compressor, heating and fan operating data.
• Device identification – model and serial number included in reports.
• Real-time clock – date and time synchronization with a smartphone or computer.
• Password-protected service menu – configuration, diagnostics and chamber temperature sensor reading adjustment.

Data storage – microSD and internal memory

The optional data logger supports microSD cards with a capacity of up to 32 GB.

A 16 GB card provides sufficient storage for several years of measurements, depending on the configured recording frequency and data format. When the available storage is full, the oldest files are automatically deleted to allow recording to continue.

The system also includes an independent internal archive covering up to 35 days, which stores measurement summaries even without an additional memory card. The oldest records are automatically overwritten by new data.

Parameter recording can also continue when cooling and heating are switched off, provided that the controller remains powered.

Optional temperature alarms

The system can be expanded with alarms for exceeding the lower and upper temperature thresholds, with individually configurable response delays.

The alarm logic can take into account the time required to initially reach the operating temperature.

Available options may include alarm notifications in the local web interface and audible signalling.

Alarm thresholds, delays and signalling methods are determined during device configuration.

Technical specifications – ET18MEDH

- Model: ET18MEDH
- Device type: Portable transport refrigerator with cooling and heating
- Usable capacity: Approximately 16 L
- Number of compartments: 1
- Cooling technology: Compressor cooling
- Heating: Active, electronically controlled
- Temperature stabilization: Automatic cooling and heating control
- Air circulation: Forced-air circulation with fan
- Programmable setpoint range: −15°C to +40°C
- Ambient operating temperature: −10°C to +43°C
- Example restricted setpoint ranges: +2°C to +8°C and +20°C to +37°C
- User setpoint restrictions: Programmable lower and upper temperature limits
- Thermostat: Electronic
- Temperature measurement: Additional digital chamber temperature sensor
- Control panel: Electronic, with temperature display
- Settings memory: Yes
- Vehicle power supply: 12 V DC
- Mains power supply: 230 V AC via power adapter
- Internal battery: Lithium-ion, removable, included
- Battery operating time: Approximately 6 hours under test conditions (+21°C ambient, +4°C setpoint)
- Additional external battery: Available to extend operating time
- External dimensions: 478 × 410 × 324 mm (W × H × D)
- Optional communication: Wi-Fi, local web interface
- Optional parameter data logger: Yes
- Data logger memory card: microSD up to 32 GB
- Independent internal archive: Up to 35 days
- Report formats: PDF, CSV, XLSX
- Optional alarms: Temperature threshold alarms, notifications and audible signalling

Standard and optional equipment

Standard equipment:

• ET18MEDH transport refrigerator.
• Compressor cooling system.
• Active heating system.
• Electronic controller and digital temperature sensor.
• Forced-air circulation.
• Lithium-ion battery installed inside the refrigerator.
• Capability for 12 V DC and 230 V AC operation via an appropriate power adapter.

Optional equipment:

• Additional external battery.
• Wi-Fi module with local web interface.
• Temperature and operating parameter data logger.
• Reporting and data export in PDF, CSV and XLSX formats.
• Advanced temperature alarms and audible signalling.
• Individual configuration of device operating parameters.

Technical information: The programmable temperature setpoint range does not guarantee that every temperature can be achieved under all ambient conditions. Device performance depends on operating conditions, the temperature and quantity of the load, its arrangement inside the chamber and the prepared configuration. For pharmaceutical, laboratory and medical applications, the appropriate temperature profile and requirements for temperature monitoring and documentation must be verified.