Lab Procurement Services offers a comprehensive range of high-quality, affordable constant temperature equipment to handle a variety of applications.  Please see individual categories for

As well as the Parts and Accessories sections.  Our experts are here to help with product selection and quotations - give us a call, or set up a meeting!

Before ordering, check the temperature range against your method: the digital water baths here cover ambient +5° to 99°C, while refrigerated circulators reach -30°C at the low end and up to 170°C at the high end. Compare bath volume, and for chillers the cooling capacity (in kW or HP) and pump type, since the DuraChill CA chillers are listed with either a turbine or a positive displacement pump. Confirm voltage and frequency (120V 60Hz, 208-240V or 230V). Plan for the bath fluid too, such as polycool glycol mixes for below-ambient work and algae inhibitor for water baths, plus the fittings, lids and bypass kits your setup needs.

Constant Temperature: common questions

What is constant temperature equipment?

Constant temperature equipment holds samples, vessels or connected instruments at a set temperature. It includes water and bead baths, heated and refrigerated circulators, recirculating chillers, immersion coolers, general-purpose, CO2 and shaking incubators, humidity test chambers and plant growth chambers. The right choice depends on temperature range, stability, capacity, and whether you need to heat, cool or both.

What is the difference between a circulator and a chiller?

A circulator has a bath with a heater, often refrigeration, and a pump that can control the bath itself or circulate fluid through external equipment. A recirculating chiller is mainly built to remove heat, supplying cooled fluid to equipment such as rotary evaporators, condensers or lasers. Chillers typically focus on cooling capacity, while circulators offer wider temperature ranges and their own working bath.

What fluid should I use in a lab bath or circulator?

Distilled or deionized water is commonly used for moderate temperatures, often with an algae inhibitor to keep the bath clean. For temperatures near or below freezing, a water and glycol mix is typical, and specialty fluids or oils are used at higher temperatures. Use a fluid rated for your full operating range and approved by the equipment manufacturer.

Can I get a quote on a chiller or incubator?

Yes. Volume and quote pricing is available through the Contact Us page, and approved business accounts can pay by purchase order. Larger equipment often ships directly from the manufacturer, so lead times vary by item. Include the model, voltage and quantity in your request so the quote matches what you need.

Constant Temperature

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  1. Open Bath, 6L, Stainless Steel , Advanced Digital (Ambient +10° to 150°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    PolyScience Circulating Baths are as precise as they are reliable. Every product comes equipped with innovative proprietary features, from the quiet, energy-efficient heat removal of our WhisperCool™ Environmental Control System to the fast-acting temperature control of Cool Command™ Technology. Our Circulating Baths are easy to use, offering interface controller flexibility, clear navigational buttons and menu prompts, ergonomic design for easy repositioning and simple fluid connections. These hard-working machines were designed to make your life easier and more productive. (1 per EA)
    Learn More
    was $3,046.50 Special Price $2,857.63
  2. Climacell EVO 222 (8 ft3) Photostability, Stability Chamber
    Manufacturer: BMT USA
    Climacell EVO 222 (8 ft3) Photostability, Stability Chamber (1 per EA )
    Learn More
    was $34,389.40 Special Price $33,046.84
  3. Open Bath, 10L, Stainless Steel, Advanced Digital (Ambient +10° to 150°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    PolyScience Circulating Baths are as precise as they are reliable. Every product comes equipped with innovative proprietary features, from the quiet, energy-efficient heat removal of our WhisperCool™ Environmental Control System to the fast-acting temperature control of Cool Command™ Technology. Our Circulating Baths are easy to use, offering interface controller flexibility, clear navigational buttons and menu prompts, ergonomic design for easy repositioning and simple fluid connections. These hard-working machines were designed to make your life easier and more productive. (1 per EA)
    Learn More
    was $3,202.00 Special Price $3,003.47
  4. Refrigerated Circulator, 20L, Standard Digital (-30° to 170°C), 120V, 60Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, universal icon and English display Swivel 180™ Rotating Controller On-board connectivity: RS-232 serial output On-screen prompts Automatic performance optimization Single-point calibration capability (1 per EA)
    Learn More
    was $7,092.25 Special Price $6,652.54
  5. Climacell EVO 404 (14.3 ft3) Freeze - Thaw Chamber
    Manufacturer: BMT USA
    Temperature control range -20°C to 100°C. 230V (1 per EA )
    Learn More
    $46,300.08
  6. CW3-20 Heating Bath Circulator including RS-232 interface and software(20L), 120V, 60Hz
    Manufacturer: Jeio Tech
    CW3-20 Heating Bath Circulator including RS-232 interface and software, 20L, 120V, 60Hz 2016 New Product, Category=Baths & Circulators, 120V, 60Hz (1 per EA)
    Learn More
    $2,778.00
  7. Refrigerated Circulator, 75L, Advanced Programmable (-20° to 100°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    75L Refrigerated Circulator, Advanced Programmable , -20deg. to 100deg.C, 240V, 50Hz EA/1 (1 per EA )
    Learn More
    was $15,485.00 Special Price $14,524.93
  8. Test Tube rack for 40 x 0.5 ml tubes
    Manufacturer: Benchmark Scientific
    Test Tube rack for 40 x 0.5 ml tubes, EA /1 (1 per EA)
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    was $115.22 Special Price $109.23
  9. Climacell 1212 EVO CO2
    Manufacturer: BMT USA
    The Climacell EVO stability & photostability chamber provides exact and reproducible simulation of various conditions. The wide range of adjustable parameters includes the optional, 160°C sterilization cycle. Patented features such as the bi-directonal air flow allow for precise temperature & humidity uniformity make the Climacell EVO ideal for the simulation of numerous conditions for application in many fields of testing and research. Control is simple via the color LCD touch screen, with the fuzzy logic microprocessor combined with a variety of data output options and 30 day data logging meet the most demanding conditions of pharmaceutical, cosmetic, electronic, industrial and food industries. Optional programmable lighting (UV and VIS) for stability and photostability according to ICH Q1A R and Q1B Option 2 is available. Comes with two (2) programmable UV & VIS light shelves with UV and VIS light sensor. Volumes: 111, 222, 404, 707, 1212 litres Working temperature: 0degC up to 100degC Humidity 10percent - 98percent from 10degC ( - 20.0degC to 100degC option available) Interior: 540(x3) x 530 x 1415 mm (wxdxh) 21.2"(x3) x 20.9" x 55.7" Exterior: 2530 x 898 x 1921 mm (wxdxh) 99.6" x 35.4" x 76.6" -Stainless steel seamless chamber AISI 304 -Removable inner chamber walls -Self-diagnostic 3 wire PT-100-sensors JUMO -Galvanized steel anti-scratch painted housing -Interior hardened glass door -Compressor cooling system w/ R134a or R404a -Effcient silent fan with adjustable rate -Ergonomical door grip with safety locks -Precise temperature control w/ Fuzzy logic microprocessor -5.7 inch color touch screen -Multi-level user dependant functions and user administration -100 programs with up to 100 segments for each program -Programing temperature ramps & delayed start and stop function -Self diagnostic programs for quick troubleshooting -Integrated datalogger, up to 30 days of process data -Acoustic and visual alarms -Digital security device type 3 -Integrated door alarm -USB Host and RS 232 data interface -SD card reader incl. 8 GB SD card -Multi-language communication -Casters, swivel and lock -2 stainless steel shelves included -Steam generator: humidification / dehumidification (1 per EA )
    Learn More
    $76,297.29
  10. Large Flange Vessel Stand,36L For Omni Vessels
    Manufacturer: Bellco Glass Inc
    Stainless steel stand for round bottom large flange omni vessels. Material: 316l stainless steel Dimensions: 24x14" Heavy duty stainless w/locking clamp Silicone cushion protects glass vessel Four legs provides stability (1 per EA )
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    $1,752.20
  11. Friocell 55 EVO
    Manufacturer: BMT USA
    The Friocell EVO cooling tempreature control incubator provides exact and reproducible simulation of various conditions. The wide range of adjustable temperature parameters includes the optional, 160°C sterilization cycle. Patented features such as the bi-directonal air flow allow for precise temperature uniformity make the Friocell EVO an ideal tool for simulation of numerous conditions for application in many fields of testing and research. Control is simple via the color LCD touch screen enabled with fuzzy logic regulation combined with a variety of data output options and 30 day data logging meet the most demanding conditions of pharmaceutical, cosmetic, electronic, industrial and food industries. Optional programmable lighting (UV and VIS) for stability and photostability according to ICH Q1A R and Q1B Option 2 is available. Volumes: 55, 111, 222, 404, 707, 1212 litres Working temperature: 0 degC up to 100 degC Option: -20degC to 100degC Interior: 400 x 380 x 355 mm 15.7" x 15" x 14" Exterior: 640 x 755 x 940 mm 25.2" x 29.7" x 37" -Stainless steel seamless chamber AISI 304 -Removable inner chamber walls -Self-diagnostic 3 wire PT-100-sensors JUMO -Galvanized steel anti-scratch painted housing -Interior hardened glass door -Compressor cooling system w/ R134a or R404a -Effcient silent fan with adjustable rate -Ergonomical door grip with safety locks -Precise temperature control w/ Fuzzy logic microprocessor -5.7 inch color touch screen -Multi-level user dependant functions and user administration -100 programs with up to 100 segments for each program -Programing temperature ramps & delayed start and stop function -Self diagnostic programs for quick troubleshooting -Integrated datalogger, up to 30 days of process data -Acoustic and visual alarms -Digital security device type 3 -Integrated door alarm -USB Host and RS 232 data interface -SD card reader incl. 8 GB SD card -Multi-language communication -Casters, swivel and lock -2 stainless steel shelves included (1 per EA )
    Learn More
    $8,191.04
  12. IB4-10V Advanced Incubator (111L, 120V, 60Hz), US Plug, 120V, 60Hz
    Manufacturer: Jeio Tech
    IB4-10V Advanced Incubator (111L, 120V, 60Hz), US Plug, 120V, 60Hz (1 per EA )
    Learn More
    $3,630.00
  13. Interior: 540 x 380 x 535 mm 21.2in x 15in x 21.1in Exterior: 780 x 755 x 1187 mm 30.7in x 29.7in x 46.7in
    Manufacturer: BMT USA
    Interior: 540 x 380 x 535 mm 21.2" x 15" x 21.1" Exterior: 780 x 755 x 1187 mm 30.7" x 29.7" x 46.7" (1 per EA )
    Learn More
    $10,560.16
  14. Climacell EVO 404 (14.3 ft3) Photostability, Stability Chamber
    Manufacturer: BMT USA
    Climacell EVO 404 (14.3 ft3) Photostability, Stability Chamber (1 per EA )
    Learn More
    was $43,191.00 Special Price $41,504.82
  15. CHILLER -20C 220-240/50 G3 PSC
    Manufacturer: Polyscience Corp
    CHILLER -20C 220-240/50 G3 PSC (1 per EA )
    Learn More
    was $6,804.25 Special Price $6,382.39
  16. KISS K6, 110-120V 1~ 50/60Hz
    Manufacturer: Huber USA Inc
    KISS K6 with new controller "KISS" Refrigerated Heating Bath Temperature Range: -25 ... 200 °C Cooling capacity 20°C: 0,2 kW Cooling capacity 0°C: 0,15 kW Cooling capacity -20°C: 0,05 kW Heating capacity: 1,5 kW Pressure pump max.: 14 l/min / 0,25 bar Suction pump max.: 10,5 l/min / 0,17 bar Pump connection: M16x1 male Bath volume: 4,5 l Power supply: 110-120V 1~ 50/60Hz - with natural refrigerant - RS232/serial with the LAI commands G,v,L; (SpyLight compatible) (1 per EA )
    Learn More
    was $7,760.00 Special Price $6,710.12
  17. KISS K25, 110-120V 1~ 50/60Hz
    Manufacturer: Huber USA Inc
    KISS K25 with new controller "KISS" Refrigerated Heating Bath Temperature Range: -30 ... 200 °C Cooling capacity 20°C: 0,4 kW Cooling capacity 0°C: 0,35 kW Cooling capacity -20°C: 0,16 kW Heating capacity: 1,5 kW Pressure pump max.: 14 l/min / 0,25 bar Suction pump max.: 10,5 l/min / 0,17 bar Bath volume: 23,5 l Power supply: 110-120V 1~ 50/60Hz optional: Pump connection: M16x1 male - with natural refrigerant - RS232/serial with the LAI commands G,v,L; (SpyLight compatible) (1 per EA )
    Learn More
    was $13,100.00 Special Price $11,327.65
  18. HTS 5, 200-240V 1~/2~ 50/60Hz
    Manufacturer: Huber USA Inc
    HTS 30 with controller "Pilot ONE" Heat Exchanger Unit Temperature range: (3) ... (95) °C Cooling power at 20°C: 30 kW max. delivery pressure 4,7 bar max. delivery 240 l/min Pump connection: G1 1/4 male Power supply: 460V 3~ 60Hz Thermal fluid- primary circuit water 3/20°C (max. 6 bar) Thermal fluid - secondary circuit water 3°C to 95°C (1 per EA )
    Learn More
    was $15,200.00 Special Price $14,082.35
  19. Climacell 404 EVO CO2
    Manufacturer: BMT USA
    The Climacell EVO stability & photostability chamber provides exact and reproducible simulation of various conditions. The wide range of adjustable parameters includes the optional, 160°C sterilization cycle. Patented features such as the bi-directonal air flow allow for precise temperature & humidity uniformity make the Climacell EVO ideal for the simulation of numerous conditions for application in many fields of testing and research. Control is simple via the color LCD touch screen, with the fuzzy logic microprocessor combined with a variety of data output options and 30 day data logging meet the most demanding conditions of pharmaceutical, cosmetic, electronic, industrial and food industries. Optional programmable lighting (UV and VIS) for stability and photostability according to ICH Q1A R and Q1B Option 2 is available. Volumes: 111, 222, 404, 707, 1212 litres Working temperature: 0degC up to 100degC Humidity 10percent - 98percent from 10degC ( - 20.0degC to 100degC option available) Interior: 540 x 530 x 1415 mm 21.2" x 20.9" x 55.7" Exterior: 1100 x 885 x 1890 mm 43.3" x 34.8" x 74.4" -Stainless steel seamless chamber AISI 304 -Removable inner chamber walls -Self-diagnostic 3 wire PT-100-sensors JUMO -Galvanized steel anti-scratch painted housing -Interior hardened glass door -Compressor cooling system w/ R134a or R404a -Effcient silent fan with adjustable rate -Ergonomical door grip with safety locks -Precise temperature control w/ Fuzzy logic microprocessor -5.7 inch color touch screen -Multi-level user dependant functions and user administration -100 programs with up to 100 segments for each program -Programing temperature ramps & delayed start and stop function -Self diagnostic programs for quick troubleshooting -Integrated datalogger, up to 30 days of process data -Acoustic and visual alarms -Digital security device type 3 -Integrated door alarm -USB Host and RS 232 data interface -SD card reader incl. 8 GB SD card -Multi-language communication -Casters, swivel and lock -2 stainless steel shelves included -Steam generator: humidification / dehumidification (1 per EA )
    Learn More
    $54,740.92
  20. Climacell 404 EVO
    Manufacturer: BMT USA
    The Climacell EVO stability & photostability chamber provides exact and reproducible simulation of various conditions. The wide range of adjustable parameters includes the optional, 160°C sterilization cycle. Patented features such as the bi-directonal air flow allow for precise temperature & humidity uniformity make the Climacell EVO ideal for the simulation of numerous conditions for application in many fields of testing and research. Control is simple via the color LCD touch screen, with the fuzzy logic microprocessor combined with a variety of data output options and 30 day data logging meet the most demanding conditions of pharmaceutical, cosmetic, electronic, industrial and food industries. Optional programmable lighting (UV and VIS) for stability and photostability according to ICH Q1A R and Q1B Option 2 is available. Volumes: 111, 222, 404, 707, 1212 litres Working temperature: 0degC up to 100degC Humidity 10percent - 98percent from 10degC ( - 20.0degC to 100degC option available) Interior: 540 x 530 x 1415 mm 21.2" x 20.9" x 55.7" Exterior: 1100 x 885 x 1890 mm 43.3" x 34.8" x 74.4" -Stainless steel seamless chamber AISI 304 -Removable inner chamber walls -Self-diagnostic 3 wire PT-100-sensors JUMO -Galvanized steel anti-scratch painted housing -Interior hardened glass door -Compressor cooling system w/ R134a or R404a -Effcient silent fan with adjustable rate -Ergonomical door grip with safety locks -Precise temperature control w/ Fuzzy logic microprocessor -5.7 inch color touch screen -Multi-level user dependant functions and user administration -100 programs with up to 100 segments for each program -Programing temperature ramps & delayed start and stop function -Self diagnostic programs for quick troubleshooting -Integrated datalogger, up to 30 days of process data -Acoustic and visual alarms -Digital security device type 3 -Integrated door alarm -USB Host and RS 232 data interface -SD card reader incl. 8 GB SD card -Multi-language communication -Casters, swivel and lock -2 stainless steel shelves included -Steam generator: humidification / dehumidification (1 per EA )
    Learn More
    $30,519.84
  21. Climacell EVO 707 (25 ft3) Freeze - Thaw Chamber
    Manufacturer: BMT USA
    Temperature control range -20°C to 100°C. 230V (1 per EA )
    Learn More
    $50,639.00
  22. GENERAL PURPOSE BENCHTOP INCUBATOR WITH WINDOW 37L 220V 1A 50/60Hz
    Manufacturer: Yamato Scientific America
    Yamato IC-113CW 1.3 Cu. Ft. (37L) Incubator with Window Description Economical general purpose natural convection incubator Operationand functions Space saving Design Observation window for improved visibility Control panel of IC103C/113C located at a h (1 per EA )
    Learn More
    was $1,185.00 Special Price $1,057.61
  23. GENERAL PURPOSE INCUBATOR WITH WINDOW 159L 115V 6A 50/60Hz
    Manufacturer: Yamato Scientific America
    amato IC-603CW 5.6 Cu. Ft. Incubator with Window Description Economical general purpose natural convection incubator Operation and functions Space saving Design Observation window for improved visibility Dual door system permits contents to be viewed (1 per EA )
    Learn More
    was $2,170.00 Special Price $1,936.73
  24. PROGRAMMABLE REFRIGERATED ECO INCUBATOR 286L 115V
    Manufacturer: Yamato Scientific America
    PROGRAMMABLE REFRIGERATED ECO INCUBATOR 286L 115V (1 per EA )
    Learn More
    was $13,665.00 Special Price $12,196.01
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