Used Thermo Fisher Scientific Cw3 for sale (896)

Condition: refurbished (used), functionality: fully functional, !!!We have two units in stock, price is for one unit only!!! Thermo Scientific 3951 Reach-In CO2 Incubator - Calibrated! Specification Details Capacity 821 L (29 cu ft) Temp. Range Ambient + 5 °C to 50 °C CO₂ Range 0–20% (TC sensor) Cedpfx Aijxaqncsljrh Humidity < 80% (medium) or < 90% (high) with 15 L reservoir Uniformity ± 0.3 °C at 37 °C (control ±0.1 °C) Interior Dimensions 68.5 × 78.7 × 152.4 cm Exterior Dimensions 83.8 × 96.5 × 203.2 cm Weight ~227 kg (500 lb) Electrical 200/230 V, 50/60 Hz, 10 A Certification CE, UL, cUL Good working condition. Please check out our other listings as well.

Condition: used, This listing is for the Thermo Scientific Multifuge Pro Centrifuge Series The units are in full working condition and are ready for immediate use The Thermo Scientific™ Multifuge™ Pro Centrifuge Series (including the X4R refrigerated model) is a high-performance, versatile laboratory centrifuge designed for high-capacity, general-purpose processing. Featuring a 4-liter capacity, these units are ideal for cell culture, blood separation, and microbiologyKey Features: Cedpfx Aoyt Naxeilorh - Auto-Lock™ Rotor Exchange: Tool-less, push-button rotor exchange for fast application changes in under 3 seconds. - Intuitive Interface: A full-color touch screen provides easy, rapid programming, with storage for up to 100 programs. - Versatility & Capacity: Compatible with up to 18 different rotors (swing-out and fixed-angle) with a maximum speed of 15,200 rpm (up to 25,830 x g). - Sample Protection: ClickSeal™ biocontainment lids provide certified, glove-friendly, snap-on sealing for safety. - Efficient Design: The X4R refrigerated model includes a powerful cooling system for temperature-sensitive samples, with a range of -10°C to +40°C. - SMARTSpin™ Technology: Advanced rotor management optimizes acceleration, braking, and residual load imbalance.

Condition: excellent (used), Thermo Scientific Thermo Scientific Forced-Air Drying Oven UT 6200 F with external temperature control unit Single STW150 Temperature Control System 85°C Thermo Scientific Forced-Air Drying Oven UT 6200 F with external temperature control unit Complete laboratory temperature control and drying system Description – Function & Application For sale is a professional temperature control and drying system comprising: - Thermo Scientific / Heraeus Forced-Air Drying Oven UT 6200 F - Single Water Temperature Control Unit STW 150/1-3-10-K5 The forced-air drying oven ensures uniform temperature distribution inside the chamber and is ideal for drying, heating, and temperature-controlling samples, components, or materials. Heating is provided via the external water temperature control unit (external heater), resulting in highly stable, indirect, and gentle temperature management—without local overheating and with homogeneous heat distribution. Typical areas of use: - Laboratory & research - Industry & production - Materials testing / component drying - Tempering, heating, drying at constant temperatures Robust laboratory and industrial quality—reliable and durable. Device 1 – Forced-Air Drying Oven: Manufacturer: Thermo Scientific / Heraeus Model: UT 6200 F Technical Data: - Max. temperature: 85°C - Operating voltage: 230 V - Frequency: 50 / 60 Hz - Power consumption: 0.6 A - Power: 0.14 kW - Protection class: IP20 Dimensions & Weight (approx.): - External dimensions: 895 × 816 × 715 mm - Inner chamber: 554 × 644 × 503 mm - Volume: approx. 180 liters - Weight: approx. 100 kg Device 2 – Water Temperature Control Unit: Manufacturer: Single Temperiertechnik GmbH Model: STW 150/1-3-10-K5 Technical Data: - Heat transfer medium: water Crsdeziy D Espfx Ailjh - Connection: 400 V / 3~ / PE / 50 Hz - Power consumption: 6.9 A - Heating capacity: 9 kW - Apparent power: 4.7 kVA - Max. temperature: 150°C Dimensions & Weight (approx.): - Dimensions: 30 × 75 × 60 cm - Weight: 55 kg Total: - Complete temperature control and drying system - Joint operation possible (external heating / external heater) - Total weight: approx. 155 kg Important note: "The table shown in the photos is not included in the sale." Condition: used Scope of delivery: (see picture) (Specifications are subject to change and error!) For further questions, we are happy to assist you by phone.

Condition: used, This listing is for the Thermo Scientific Adv 4 Block Drybath 200-24V The unit is in full working condition and ready for immediate use Designed for consistent and accurate heating of samples, this dry bath accommodates multiple blocks, offering flexibility for various tube sizes. Ideal for molecular biology, clinical, and research labs requiring stable temperature performance. Transparency Report and Technical Audit: • Source Pedigree: Biotech / Research Facility • Condition: Direct-from-Bench (Decontaminated/Original) • Power-On Test: Verified; Digital display active, lighting operational, and fan system engaged. • Integrity: 100% Original Parts (Non-Refurbished) Cjdpfxjy Dpyze Ailorh Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory

Year of construction: 2020, condition: new, functionality: fully functional, Brand new in the box, never used. Please check out our other listings as well. Crjdpfx Aiewiqggolsh

Condition: used, This listing is for the Thermo Scientific ClearVue Coverslipper Cjdpfx Aoyt Ilaoilorh The units are in full working condition and are ready for immediate use The Thermo Scientific ClearVue Coverslipper is an automated, high-throughput system designed to streamline slide preparation in pathology and histology laboratories. It is engineered to deliver high-quality, consistent results with minimal manual intervention Key Features and Performance - High Throughput: The system can process up to 250 slides per hour. It can handle up to 11 slide baskets simultaneously through a load-on-demand system. - Specimen Recognition: The system automatically identifies the type of slide preparation (histology vs. cytology) and adjusts the mountant volume. - Stainer Compatibility: It is compatible with various slide stainers, including:Thermo Scientific Varistain Gemini ES and 24-4. - Sakura Tissue-Tek DRS 2000 series. - Leica Auto-Stainer - Pre-loaded Hoppers: The system uses pre-filled coverslip hoppers (holding 500–575 slips) to reduce glass handling and prevent contamination or fingerprints. - Optical Recognition: Sensors ensure proper slide positioning. The system uses vacuum and pressure to mount the cover glass accurately without bubbles

Condition: used, This listing is for the Thermo Haake SC100 Water Bath + Immersion Circulator. The unit is in full working condition and ready for immediate use. Thermostatic water bath with integrated immersion circulator, designed for accurate temperature control in research and industrial labs. Ideal for sample incubation, heating, and fluid temperature regulation. Transparency Report and Technical Audit: • Source Pedigree: Biotech / Research Facility • Condition: Direct-from-Bench (Decontaminated/Original) • Power-On Test: Verified; Digital display active, lighting operational, and fan system engaged. Crodpey H Dlqofx Ailoh • Integrity: 100% Original Parts (Non-Refurbished) Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory.

Condition: used, This listing is for the Thermo Scientifi Max Q 8000 Orbital Shaker-Incubator The unit is in full working condition and is ready for immediate use The MaxQ 8000 provides high-capacity orbital shaking with integrated temperature control. This unit is direct-from-lab surplus in original condition, ideal for growing cultures and general mixing applications while saving valuable floor space. Viewing is possible in Duxford by appointment Professional Asset Overview The Thermo Scientifi Max Q 8000 Orbital Shaker-Incubator was acquired after decontamination as a surplus asset directly from a high-tier research facility. This unit is sold in its Original Lab State. We specialize in Direct Reuse, meaning we do not tamper with, refurbish, or alter the internal components of the machine. You receive the instrument exactly as it was decommissioned from the active research bench. Transparency Report and Technical Audit: • Source Pedigree: Tier-1 Biotech • Condition: Direct-from-Bench Original • Power-On Test: Verified • Integrity: 100% Original Parts (Non-Refurbished) Software and Media Disclosure: As a Direct-from-Lab asset, any original software media or accessories found with the unit are included as a courtesy. • Licensing Notice: We do not provide, transfer, or guarantee software licenses or keys. The buyer is responsible for all software licensing, registration, and workstation compatibility via the manufacturer. Notice for Procurement: This unit is sold As-Is, Where-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. Crjdpfx Asyv Ik Noileh Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory..

Year of construction: 2020, condition: like new (used), Here we offer a safety workbench. The Herasafe 2030i series of biological safety cabinets utilizes many years of experience in the field of global leadership in BSC design, incorporating groundbreaking innovations to optimize the prevention of contamination, user-friendliness, and information management, and delivers the most technologically advanced Class II cabinets on the market. Equipped with "intelligent" safety features for self-monitoring, Crodjzd Udvjpfx Ailjh an intuitive graphical touchscreen user interface, and integrated connectivity for maintaining important performance data, the Herasafe 2030i impresses with its performance and unparalleled precision for demanding cell culture applications and other sensitive tasks that require a high level of safety for product, personnel, and the environment. Suitable for working with BSL 1, 2, and 3 pathogens, EN1822 standards, dual DC motors, DAVe Plus, SmartFlow Plus, and SmartClean Plus. Features an intuitive touchscreen interface, a working height of 20 cm, an electrically operated window, a segmented work surface in sections of 30 cm, and a 316L stainless steel interior. Certified by TÜV Nord according to EN12469. Includes an optional, manually adjustable base, 1.5 m including a Thermo cross-beam UV lamp. External dimensions (L x W x H): 800 x 1600 x 1536 mm Internal dimensions (L x W x H): 627 x 1500 x 780 mm 230 V 9 A 2010 W Type: Herasafe 2030i 1.5 Condition: used / like new (Changes and errors in technical data are subject to change!) We will gladly answer any further questions you may have by telephone.

Condition: used, This listing is for a Thermo Scientific 75005701 Centrifuge Rotor. The unit is in full working condition and is ready for immediate release. Thermo Scientific 75005701 Centrifuge Rotor The 75005701 Centrifuge Rotor is a high-capacity swinging bucket rotor engineered for use with Thermo Scientific Sorvall ST8 and Heraeus Megafuge 8 centrifuges, designed for efficient and safe sample processing. Key Features: Capacity: Holds 4 round buckets, allowing for versatile sample volumes and formats, ideal for various laboratory applications. Swinging Bucket Design: This design promotes efficient sample processing, enabling the rotor to tilt during centrifugation for effective separation and easier loading/unloading. Crjdpfx Asxxyxboilsh ClickSeal Biocontainment Lids: These lids ensure secure, one-handed operation, minimizing contamination risks and enhancing user safety during sample handling. Adaptors for Blood Collection Tubes: Specifically designed adapters accommodate 5/7mL and 10mL blood collection tubes, making it suitable for clinical and research applications involving blood samples. Compatibility: Tailored for use with Thermo Scientific Sorvall ST8 and Heraeus Megafuge 8 centrifuges, ensuring seamless integration into laboratory workflows. Specifications: Type: Swinging bucket rotor Capacity: 4 round buckets Adaptors: Available for blood collection tubes (5/7mL and 10mL) Compatibility: Thermo Scientific Sorvall ST8, Heraeus Megafuge 8 centrifuges

Condition: used, This listing is for Thermo Scientific Cytospin 4 Centrifuge. The unit is in full working condition and ready for immediate use. Power-On Verified The Thermo Scientific Cytospin 4 is a premier cell preparation centrifuge designed for thin-layer cell deposition. It utilizes centrifugal force to isolate and deposit cells onto microscope slides while maintaining cellular morphology. Features include a sleek design, simple touchscreen controls, and enhanced safety protocols. Transparency Report and Technical Audit: Power-On Test: Verified; Digital display active, lighting operational, and fan system engaged. Software and Media Disclosure: As a Direct-from-Lab asset, any original software media or accessories found with the unit are included as a courtesy. Licensing Notice: We do not provide, transfer, or guarantee software licenses or keys. The buyer is responsible for all software licensing, registration, and workstation compatibility via the manufacturer. Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. Sustainability Impact: By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory Credoza Dcbepfx Ailsh • Source Pedigree: Biotech / Research Facility • Integrity: 100% Original Parts (Non-Refurbished) • Condition: Direct-from-Bench (Decontaminated/Original)

Condition: good (used), Thermo Fisher ARCTIC A25 Technical data: Controller type: SC150 Capacity: 12 l Communication: RS232, RS485, Ethernet/LAN, analog I/O Cooling capacity: 500 W Flow rate: 17 l/min Pump type: Pressure pump, suction pump Temperature range: -25°C to +100°C Max. pressure: 300 mbar Temperature stability: 0.02°C Dimensions (L x W x H): 48.3 x 27.3 x 71.1 cm Length: 48.3 cm Internal length: 18.4 cm Width: 27.3 cm Internal width: 17.3 cm Height: 71.1 cm Internal depth: 20.4 cm Crjdpfxszgcgdj Ailoh Weight: 36.1 kg Electrical requirements: 230 V 50 Hz Voltage: 230 V Frequency: 50 Hz Condition: used Scope of delivery: (See pictures as shown) (Changes and errors in the technical data are subject to change!) We would be happy to answer any further questions you may have over the phone.

Condition: used, Electronic crimpers provide secure, reproducible crimps. A single press of the button both closes the crimping jaws to attach the seal and opens them to release the vial. Decappers provide quick and easy removal with a single press of the operation button. Adjustable crimp settings allow compatiblity with standard aluminimum, pressure-release, tin-plated steel and bimetal two-piece seals† Ergonomic design reduces wrist strain Controls and indicator lights are visible and accessible for left- or right-handed operation Crimpers and decappers can be operated while plugged in and recharging Vials can be crimped or decapped while they remain in most standard removable sample trays Crimp-force sensing automatically determines when a proper seal has been formed and opens the jaws to release the vial Codjxzhy Sspfx Ailorh

Year of construction: 2020, condition: like new (used), Here we offer a safety workbench. The Herasafe 2030i series with biological safety cabinets utilizes many years of experience in the area of global leadership in BSC design, incorporating groundbreaking innovations to optimize the prevention of contamination, user-friendliness and information management, and provides the technologically most advanced Class II cabinets on the market. Equipped with "intelligent" safety functions for self-monitoring, an intuitive graphical touchscreen user interface and integrated connectivity to maintain important performance data, the Herasafe 2030i impresses with its performance and unparalleled precision for demanding cell culture applications and other sensitive work Crjdszd Udpopfx Aileh that requires a high level of safety for product, personnel and the environment. Suitable for working with BSL 1, 2 and 3 pathogens, EN1822 standards, dual DC motors, DAVe Plus, SmartFlow Plus and SmartClean Plus. Features an intuitive touchscreen interface, a working height of 20 cm, an electrically operated window, a segmented work surface in sections of 30 cm and a 316L stainless steel interior. Certified by TÜV Nord according to EN12469. Includes the option of a manually adjustable Thermo base, 1.5 m. External dimensions (L x W x H): 800 x 1600 x 1536 mm Internal dimensions (L x W x H): 627 x 1500 x 780 mm 230 V 9 A 2010 W Type: Herasafe 2030i 1.5 Condition: used / like new (Changes and errors in the technical data are subject to change!) We will be happy to answer any further questions you may have by telephone.

Condition: used, This listing is for a Thermo Scientific FiberLite F21-8x50y Centrifuge Rotor. The unit is in full working condition and is ready for immediate release. The Thermo Scientific FiberLite F21-8x50y Centrifuge Rotor is a versatile and high-performance laboratory tool suitable for a wide range of applications. Here’s an organized overview of its key features, specifications, and applications: Key Features and Specifications Design and Capacity: Cedpsxx Appofx Ailjrh Holds up to 8 tubes Capacity of 50 mL per tube Material: Constructed from lightweight, corrosion-resistant materials such as carbon fibre and aluminium Configuration: Fixed-angle design, with tubes positioned at a constant angle relative to the axis of rotation Compatibility: Works with various Thermo Scientific centrifuges, including: Heraeus Megafuge series Sorvall Legend series Safety Features: Automatic rotor recognition system Lid-locking mechanism to prevent accidental opening during operation Performance: Maximum speed: 21,000 rpm Maximum RCF: 52,400 x g Weight: Net weight of the rotor: 9.9 lb (4.49 kg) Biocontainment: Features a bioseal lid to ensure samples remain contained and to protect users from hazardous chemicals Environmental Considerations: Energy-efficient design with reduced waste production Key Applications The FiberLite F21-8x50y Centrifuge Rotor is ideal for various laboratory procedures, including: Subcellular Separations: Isolating cellular components for research and analysis. Bacteria Pelleting: Concentrating bacterial cultures for further experiments. Lysate Clarification: Removing debris from cell lysates to obtain clear samples. Cell Membrane Studies: Analyzing the properties and functions of cell membranes. Sucrose Gradient Isolation: Mitochondria Endoplasmic reticulum Gradient separation of cells using solutions like Percoll, Ficoll, Optiprep, or Nycodenz This rotor combines advanced technology with practical safety and efficiency features, making it suitable for a variety of applications in research, clinical, and industrial laboratories.

Condition: used, This listing is for Thermo Scientific Heraeus Pico 17 Microcentrifuge Crjdpfx Aisy Iw Dpsleh The unit is in full working condition and ready for immediate use The Thermo Scientific Heraeus Pico 17 is a compact ventilated benchtop microcentrifuge designed for routine laboratory micro-volume separation. It provides speeds up to 13,300 rpm and maximum RCF of 17,000 x g, with capacity for 24 x 1.5/2.0 mL tubes. Dimensions are approximately 225 x 243 x 352 mm and weight is approximately 10.5 kg. Rotor configuration may vary depending on the individual unit

Condition: used, This listing is for Thermo Scientific TSX Series High-Performance Undercounter Laboratory Refrigerator – Glass Door The unit is in full working condition and ready for immediate use The Thermo Scientific TSX505GA is a 156-litre high-performance undercounter laboratory refrigerator with a glass door and adjustable temperature range of 3°C to 7°C. It features automatic defrost, three adjustable shelves, touchscreen control, temperature alarms and an integrated data logger. The unit operates from 100–240V and has a low noise level of approximately 35 dBA Transparency Report and Technical Audit: Software and Media Disclosure: As a Direct-from-Lab asset, any original software media or accessories found with the unit are included as a courtesy. Licensing Notice: We do not provide, transfer, or guarantee software licenses or keys. The buyer is responsible for all software licensing, registration, and workstation compatibility via the manufacturer. Notice for Procurement: This unit is sold As-Is. While we verify the power-on status and physical integrity, we do not perform analytical validation, fluidic testing, or operational calibration. Ideal for labs with in-house technical expertise or existing service agreements. Sustainability Impact: Crjdpfez D E Uiex Aileh By choosing Direct Reuse, your facility avoids the carbon footprint of new manufacturing and prevents specialized materials from entering waste streams. Direct-to-Lab reuse is the most carbon-efficient way to equip a modern laboratory.

Year of construction: 2017, condition: ready for operation (used), 2 units Thermo Scientific Heracell 150i CO2 incubators, No. 439 + 440 Internal dimensions: 450mm x 450mm x 600mm (W x D x H) External dimensions (per unit): 640mm x 820mm x 870mm (W x D x H) Year of manufacture: 2017 Temperature range: 3°C - 55°C Decontamination routine at 90°C. You are welcome to arrange an inspection appointment. Credpjywxqvefx Ailjh We can organise affordable shipping for you! You will receive a proper invoice. For international customers, a net invoice can also be issued, provided you have a valid VAT ID. Subject to prior sale. Visit our shop to view more of our listings. All company names and trademarks mentioned are the property of their respective owners and are used for identification and description purposes only. Technical data may vary and errors in the description of the item may occur; such errors and deviations are reserved.

Condition: used, Technical details: Credpfeu Nw Hlox Ailsh tank capacity: - l voltage: 230 / 50 V / Hz weight of the machine approx.: Anlage ist demontiert kg OSMOSIS PLANT *

Condition: used, Technical details: tank capacity: - l Codpfx Aisu Nw Enslerh voltage: 230 / 50 V / Hz weight of the machine approx.: Anlage ist demontiert kg OSMOSIS SYSTEM The system has been dismantled. We are selling the system/parts at cost price! Areas of application, e.g.: All types of contaminants are filtered out. e.g. bacteria, viruses, pesticides, nitrate, fertilizer residues, lime, salts The system was preserved in 2014. i.D. *

Condition: used, Thermo Scientific HERAcell 150 i CO2 incubator cabinet Chamber volume [l]: 150 l External dimensions (W x H x D): 637 x 867 x 782 mm Cjdstzakqopfx Ailerh Internal dimensions (W x H x D): 470 x 607 x 530 mm Interior material: Solid copper You are welcome to come by for a viewing. We will be happy to arrange a cost-effective forwarding agent for you. organize! You will receive a proper invoice. A net invoice can also be issued for foreign customers. Prerequisite is a valid VAT number. Subject to prior sale. Visit our store and have a look at our other offers. Company names and trademarks are the property of their owners and are used only to identify and describe the products. Deviations from technical data and errors in the description of the article may occur and are reserved.

Condition: used, This listing is for Kingfisher Duo Nucleic Acid Purification. The unit is in full working condition and ready for immediate use. Codpey Hrxxjfx Ailsrh This automated system uses magnetic particle technology for high-quality DNA, RNA, and protein extraction. It processes up to 12 samples per run, providing consistent results for proteomics and genomics workflows with minimal hands-on time.

Condition: excellent (used), Here we offer an ICS system. Flow rate range: 0.000 to 10.000 ml/min (analytical); 0.000 to 3.000 ml/min (capillary) Flow rate accuracy: < 0.1% Flow rate precision: < 0.1% Gradient dosing accuracy and precision: ± 0.5% at 2 ml/min (analytical only) Pressure range: 0 to 35 MPa (0 to 5,000 psi) (analytical); 0 to 41 MPa (0 to 6,000 psi) (capillary) Dimensions (H x W x D): 14 x 8.25 x 19 in. (36 x 21 x 48 cm) Weight: 24.1 kg (55 lb.) (ICS-5000) Power supply: 9 to 265 V AC, 47 to 63 Hz Crjdpfozdtlfox Ailoh The system consists of the following components: ICS-5000 plus dual pump 6-port valve MXP9900-000 AFC-3000 automated fraction collector RFC-10 regulator Condition: used Scope of supply: (See pictures as shown) (Subject to change and errors in technical data and specifications!) We will gladly answer any further questions you may have by phone.

Condition: used, This listing is for the Thermo Scientific 1blck Drybath Standard 1 Includes 1 No 12 Block usually retailing around £60+ Crodpjy Iw A Sefx Ailsh The unit is in full working condition and is ready for immediate release. The Thermo Scientific Drybath Standard 1-block is a laboratory dry bath/block heater designed to provide precise, controlled heating for a variety of sample tubes using a removable heat block. It’s widely used in molecular biology, biochemistry, and general lab workflows where incubation or heating of tubes at set temperatures is required.

Condition: used, This listing is for the Thermo Scientific 1blck Drybath Standard 1/12 Block Cjdpey Iw D Njfx Ailerh The unit is in full working condition and is ready for immediate release The Thermo Scientific Drybath Standard 1-block is a laboratory dry bath/block heater designed to provide precise, controlled heating for a variety of sample tubes using a removable heat block. It’s widely used in molecular biology, biochemistry, and general lab workflows where incubation or heating of tubes at set temperatures is required.