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. Refrigerated Circulator, 7L Space-Saving, MX (-20° to 135°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, universal icon and English display On-screen prompts Single-point calibration capability (1 per EA)
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    was $4,541.25 Special Price $4,259.69
  2. Incucell V 222 ECO
    Manufacturer: BMT USA
    Incucell natural gravity convection microbiological incubators provide noiseless operation and gentle airflow along with exceptional temperature uniformity. The lack of a fan significantly reduces particle movement inside the chamber, making incucell incubators ideal for the safe treatment of microbiological cultures. (1 per EA )
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    $8,384.18
  3. Refrigerated Circulator, 20L, Advanced Digital (-30° to 200°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)
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    was $7,750.50 Special Price $7,269.98
  4. Roll-in CO2 Incubator, 230V, 40 CU. FT.
    Manufacturer: Bellco Glass Inc
    Bellco CO2 Incubators have 40 cubic feet of volume and are designed for use with Bellco's Cell Production Roller Apparatus (CPRA). One internal convenience outlet on top allows simple connection to internally placed appliances such as CPRA, Roller Drums, Magnetic Stirrers, etc. Fans take air from the chamber top, pass it over the 1100 watt heater and re-inject it into the chamber on the back wall. A microprocessor temperature controller and membrane keypad allows simple setting and monitoring of chamber temperature. A safety thermostat is included to prevent over-temperature failures. Shelf brackets are included for mounting of optional shelves. A microprocessor CO2 controller allows simple setting and monitoring of chamber CO2 level. The control panel features indicating lights and dials for automatic control of temperature. (1 per EA )
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    $21,047.17
  5. Refrigerated Circulator, 20L, MX (-30° to 135°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, universal icon and English display On-screen prompts Single-point calibration capability (1 per EA)
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    was $6,528.50 Special Price $6,123.74
  6. CHILLER -10C 120/60 G3 PSC
    Manufacturer: Polyscience Corp
    CHILLER -10C 120/60 G3 PSC (1 per EA )
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    was $5,746.00 Special Price $5,389.74
  7. Overflow Meas. Flasks Complete Set, Ea/1
    Manufacturer: Lovibond Tintometer Group
    Lovibond® Overflow Meas. Flasks, Complete Set, In Addition With Measuring Flask 21,7 ml (1 per EA)
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    $337.30
  8. Refrigerated Circulator, 28L, Advanced Digital (-30° to 200°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)
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    was $8,284.75 Special Price $7,771.09
  9. Heated Circulator, 20L, MX (Ambient +10° to 135°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, universal icon and English display On-screen prompts Single-point calibration capability (1 per EA)
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    was $3,187.75 Special Price $2,990.11
  10. ISS-7100 Incubated Shaker, 120V, 60Hz
    Manufacturer: Jeio Tech
    ISS-7100 Incubated Shaker Category=Incubators 120V, 60Hz Plug=NEMA 5-15P HS Code=8419.89.9090 (1 per EA)
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    $14,933.00
  11. Heated Circulator, 7L, Advanced Programmable (Ambient +10° to 200°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)
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    was $4,423.00 Special Price $4,148.77
  12. BW3-10G Heating Bath(11.5L), 120V, 60Hz
    Manufacturer: Jeio Tech
    BW3-10G HEAting Bath, 10L, Category=Baths & Circulators 120V, 60Hz Plug=NEMA 5-15P HS Code=8516.10.0000 (1 per EA)
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    $1,117.00
  13. IST-4075 Incubated Shaker(83L), 120V, 60Hz
    Manufacturer: Jeio Tech
    IST-4075 Benchtop Incubating Shaker,, 21.3 x 35 x 20.1, L, cu ft, 2015 New Product, replaces SI-600, Category=Incubator, 120V, 60Hz (1 per EA)
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    $7,808.00
  14. Refrigerated Circulator, 7L Low-Profile, Advanced Digital (-20° to 200°C), 120V, 60Hz
    Manufacturer: Polyscience Corp
    Our Circulating Baths set the standard on design, performance and value. With the capability to reach temperatures as low as -40°C, PolyScience Refrigerated/Heated Circulating Baths deliver reliable temperature control for a wide variety of laboratory cooling applications. (1 per EA)
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    was $5,985.00 Special Price $5,613.93
  15. Open Bath, 28L, Polycarbonate, MX (Ambient +10° to 85°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, universal icon and English display On-screen prompts Single-point calibration capability (1 per EA)
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    was $2,624.00 Special Price $2,461.32
  16. Immersion Probe Cooler, IP-100, 0.7” Ø Rigid Cold Finger Probe, (-100° to -60°C), 120V, 60Hz
    Manufacturer: Polyscience Corp
    Key Features: Continuous cooling to temperatures as low as -100°C Designed to run at maximum cooling An economical alternative to dry ice or liquid nitrogen Excellent for trapping applications, freeze drying, and rapidly cooling small volumes of liquids (1 per EA)
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    was $8,903.50 Special Price $8,351.49
  17. Refrigerated Circulator, 7L Space-Saving, Advanced Digital (-40° to 200°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 $6,489.50 Special Price $6,087.15
  18. REFRIGERATED INCUBATOR PROGRAMMABLE WITH WINDOW 286L 115V
    Manufacturer: Yamato Scientific America
    REFRIGERATED INCUBATOR PROGRAMMABLE WITH WINDOW 286L 115V (1 per EA )
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    was $12,440.00 Special Price $11,102.70
  19. SureTemp ™ Dual Convection Incubator, 130 Liters with SureTemp Data Logging Software, 230V
    Manufacturer: Benchmark Scientific
    SureTemp Dual Convection Incubator, 130 Liters with SureTemp Data Logging Software, 230V, EA/1 REQ LTL SHIPPING (1 per EA)
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    was $3,922.43 Special Price $3,500.76
  20. Chiller, DuraChill CA,1/4HP (0.7kW), Positive Displacement Pump, 1/4HP, 240V, 50Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, full-color touchscreen display with intuitive interface and operation in five languages (English, Spanish, French, German, Mandarin) Cooling at ambient temperatures as high as 40°C Choice of ultra-reliable Turbine or Positive Displacement pumps Fluid temperature control range from -10° to 70°C DynamicFilter™ self-cleaning filter system Ultraviolet anti-biological light system User-adjustable temperature, pressure, and flow rate alarms Heating to 70°C, without additional heater for more energy-efficient operation RS232, Status relay, dry contact; optional USB-B and remote probe ports Cool Command™, WhisperCool® (1 per EA )
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    was $7,145.75 Special Price $6,702.71
  21. Minichiller 600, 208-240V 1~/2~ 50/60Hz
    Manufacturer: Huber USA Inc
    Minichiller 600 with controller "Pilot ONE" Chiller Temperature range: -20 ... 40 (80)°C Cooling capacity (15°C): 0,6 kW Cooling capacity (0°C): 0,5 kW Pressure pump max.: 24 l/min / 0,7 bar Suction pump max. : 18 l/min / 0,4 bar Pump connection: M16x1 male Power supply: 208-240V 1~/2~ 50/60Hz - with natural refrigerant (R-290) (1 per EA )
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    was $10,850.00 Special Price $9,382.05
  22. Open Bath, 6L, Stainless Steel, Advanced Digital (Ambient +10° to 150°C), 120V, 60Hz
    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
  23. Open Bath, 10L, Stainless Steel, MX (Ambient +10° to 135°C), 240V, 50Hz
    Manufacturer: Polyscience Corp
    Key Features: Large, universal icon and English display On-screen prompts Single-point calibration capability (1 per EA)
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    was $2,078.75 Special Price $1,949.86
  24. Refrigerated Circulator, 28L, 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)
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    was $7,467.00 Special Price $7,004.05
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