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Description
PolyScience 7 L Space-Saving Refrigerated & Heated Circulating BathsOverview Capable of reaching temperatures as low as 40C, PolyScience Refrigerated Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications. Features Working temperatures as low as 40C and as high as +200C (varies by controller) Temperature stabilities to 0. 005C (varies by controller) Controller options with large, intuitive displays and multiple communication options Large bath openings and
Overview
Capable of reaching temperatures as low as -40°C, PolyScience Refrigerated/Heated Circulating Baths provide dependable temperature control for a wide variety of laboratory cooling applications.
Features
- Working temperatures as low as -40°C and as high as +200°C (varies by controller)
- Temperature stabilities to ±0.005°C (varies by controller)
- Controller options with large, intuitive displays and multiple communication options
- Large bath openings and easy to clean surfaces
- Swivel 180™ Rotating Controllers
- LidDock™ self-stowing reservoir cover
- DuraTop™ insulating, chemical-resistant top deck
- WhisperCool™ Environmental Control System
- Cool Command™ modulated refrigeration system
- Reservoir drain
- Washable air filter
PolyScience Refrigerated/Heated Circulators come with the following accessories:
- Reservoir cover
- Bypass tubing
- Male inlet and outlet adapters for 3/8, 1/4, and 3/16" (.95, .63, and .47 cm) tubing, 1/4" to M16 adapters also included on 50Hz units
- 6' (1.83m) standard grounded electrical cord with country-specific plug
Controllers
Specifications and features for the PolyScience 7L Refrigerated & Heated Circulating Baths vary based on the controller chosen. Some key specifications are in the table below, and additional features for each controller are listed below the table.
| - | Advanced Programmable (AP) | Advanced Digital (AD) | Standard Digital (SD) | MX |
|---|---|---|---|---|
| Maximum Temperature | 200°C | 200°C | 170°C | 135°C |
| Temperature Stability | ±0.005°C | ±0.01°C | ±0.04°C | ±0.07°C |
| Pump Type | Pressure/Suction, Variable-Speed | Pressure/Suction, Variable-Speed | Pressure Only, 2-Speed | Pressure Only, 1-Speed |
| Programmability | OpenMode - unlimited programs and steps | N/A | N/A | N/A |
| Connectivity | USB-A & B, Ethernet, RS-232/RS-485, Remote On/Off, External Temperature Probe | USB-A & B, Ethernet, RS-232/RS-485, External Temperature Probe | RS-232 | N/A |
*DIN 12876-1 Class III devices are rated for use with flammable liquids. DIN 12876-1 Class I devices may be used with non-flammable liquids only.
Safety Rating* DIN 12876-1 Class III DIN 12876-1 Class III DIN 12876-1 Class III DIN 12876-1 Class III DIN 12876-1 Class I DIN 12876-1 Class I
Advanced Programmable Features
- Working Temperature: From -40° up to +200°C
- Temperature Stability: ±0.005°C
- Safety Rating: DIN 12876-1 Class III (for use with flammable liquids)
- External Temperature Control Capability: Yes
- Pump: Variable-speed
- External Circulation: Open- or closed-loop
- OpenMode time time/temperature programming (no restrictions on number of programs or steps)
- Intuitive 4.3” (10.9 cm) SmartTouch display
- 11 languages: French, German, Spanish, Chinese, Portuguese, Russian, Hindi, Arabic, Italian, Korean, English
- Variable speed pump with open- and closed-loop external circulation capability
- Swivel 180™ Rotating Controller
- On-board connectivity: USB-A & B, Ethernet, RS-232/RS-485, remote on/off and external temperature probe
- Event scheduling (time & date) with real-time clock
- Review temperature trends for up to 10 days
- Multiple selectable “home” screens
- On-screen help
- Automatic and/or user-adjustable performance optimization
- 10-point calibration capability
- Includes Enhanced Performance Hardware & Software Package (Pt100 temperature probe, USB flash drive for data logging, stainless steel fittings and tubing adapters, PolyScience LabVIEW Virtual Instrument, iPhone application download)
Advanced Digital Features
- Working Temperature: From -40° up to +200°C
- Temperature Stability: ±0.01°C
- Safety Rating: DIN 12876-1 Class III (for use with flammable liquids)
- External Temperature Control Capability: Yes
- Pump: Variable-speed
- External Circulation: Open- or closed-loop
- Intuitive 3.75” (9.5 cm) display with touch-pad control
- 4 languages: French, German, Spanish, English
- Swivel 180™ Rotating Controller
- On-board connectivity: USB-A & B, Ethernet, RS-232/RS-485, and external temperature probe
- On-screen prompts
- Automatic performance optimization and specific heat tuning
- Single-point calibration capability
Standard Digital Features
- Working Temperature: From -30° up to +170°C
- Temperature Stability: ±0.04°C
- Safety Rating: DIN 12876-1 Class I (for use with non-flammable liquids)
- Pump: 2-speed
- External Circulation: Closed-loop
- 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
Economy MX Features
- Working Temperature: From -30° up to +135°C
- Temperature Stability: ±0.07°C
- Safety Rating: DIN 12876-1 Class I (for use with non-flammable liquids)
- Pump: 1-speed
- External Circulation: Closed-loop
- Large, universal icon and English display
- On-screen prompts
- Single-point calibration capability
Please note: PolyScience Refrigerated & Heated Circulating Baths are manufactured at the time the order is placed and have a 2-3 week lead time.
Key Attributes
|
Type |
Stirred / Circulating Baths |
|
Incubation |
Yes |
|
Refrigeration |
Yes |
|
Temp Range (°C) |
Ambient -40 to 200 (varies by controller) |
|
Capacity (L) |
7 |
| Circulation | Internal & External |
|
Brand |
PolyScience |
|
MaxFlow Rate (l/min) |
20.1, 13.5, 11 (varies by controller) |
|
Temp Stability (°C) |
±0.005, ±0.01, ±0.04, ±0.07 (varies by controller) |
|
Timer |
Yes (varies by controller) |
|
Alarms |
Yes (varies by controller) |
|
Digital or Mechanical |
Digital |
|
Data connection |
Yes (varies by controller) |
|
Tank Material |
Stainless Steel |
|
Sample Agitation |
No |
|
Media Racks Available |
No |
|
Warranty (years) |
2 |
|
Weight (lb) |
90 |
|
Width (in) |
21.3 |
|
Depth (in) |
8.7 |
|
Height (in) |
24.3 |
Manufacturer specifications
| Part Number | AP07R-20-A11B | AP07R-40-A11B | AD07R-20-A11B | AD07R-40-A11B | SD07R-20-A11B | MX07R-20-A11B |
| Description | -20, 7 L Ref. Circulator | -40, 7 L Ref. Circulator | -20, 7 L Ref. Circulator | -40, 7 L Ref. Circulator | -20, 7 L Ref. Circulator | -20, 7 L Ref. Circulator |
| Controller Type | Advanced Programmable | Advanced Programmable | Advanced Digital | Advanced Digital | Standard Digital | MX |
| Display | 4.3" SmartTouch Touchscreen | 4.3" SmartTouch Touchscreen | 4.3" SmartTouch Touchscreen | 3.75" Touch-Pad LCD | 3.75" Touch-Pad LCD | 3.25" LCD |
| Connectivity | Ethernet, USB A & B, RS232/addressable RS485, Remote On/Off, External Temperature Probe | Ethernet, USB A & B, RS232/addressable RS485, External Temperature Probe | RS232 | N/A | ||
| Languages Supported | 11: French, German, Spanish, Chinese, Portuguese, Russian, Hindi, Arabic, Italian, Korean, English | 4: French, German, Spanish, English | N/A | |||
| Time/Temperature Programs & Steps | Open Mode: No restriction on the number of programs or steps | N/A | ||||
| Swivel 180 Rotating Controller | Yes | N/A | ||||
| Working Temperature Range °C | -20° to 200° | -40° to 200° | -20° to 200° | -40° to 200° | -20° to 170° | -20° to 135° |
| Temperature Stability °C | ±0.005° | ±0.01° | ±0.04° | ±0.07° | ||
| Fluid Optimization/Specific Heat Tuning | Automatic and/or user-adjustable | Automatic | N/A | |||
| Temperature Calibration Capability | 10-point | 1-point | ||||
| Working Access (L x W x D) (cm) | 15.7 x 14.2 x 12.7 cm | |||||
| Pump Type | Pressure/Suction | Pressure | ||||
| External Temperature Control Capability | Yes | N/A | ||||
| Flammability Class (DIN 12876-1) | III (FL) | I (NFL) | ||||
|
Working Temperature Range °F |
-4° to 392° | -40° to 392° | -4° to 392° | -40° to 392° | -4° to 338° | -4° to 275° |
| Working Temperature Range °C | -20° to 200° | -40° to 200° | -20° to 200° | -40° to 200° | -20° to 170° | -20° to 135° |
| Nominal Cooling Capacity @ +20C (W) | 200 | 360 | 200 | 360 | 200 | 200 |
| Reservoir Capacity (gallons) | 1.85 | |||||
| Reservoir Capacity (liters) | 7 | |||||
| Reservoir/Tank Material | Stainless Steel | |||||
| Reservoir Cover | Included | |||||
| DuraTop | Yes | |||||
| LidDock | Yes | |||||
| Cleanable Air Filter | Yes | |||||
| Working Access (L x W x D) (inches) | 6.18 x 5.59 x 5 in | |||||
| Working Access (L x W x D) (cm) | 15.7 x 14.2 x 12.7 cm | |||||
| Temperature Stability °F | ±0.02° | ±0.01° | ±0.02° | ±0.08° | ±0.13° | |
| Temperature Stability °C | ±0.005° | ±0.01° | ±0.04° | ±0.07° | ||
| Display | 4.3" SmartTouch Touchscreen | 3.75" Touch-Pad LCD | 3.25" LCD | |||
| Display Resolution (Set) | 0.01 | 0.1 | ||||
| Display Resolution (Read) | 0.001 | 0.1 | ||||
| Pump Type | Pressure/Suction | Pressure | ||||
| Pump Speed | Variable | Two | One | |||
| Process Connections | 1/4" (F) NPT | 1/2" O.D. Barbed Tubes | ||||
| External Temperature Control Capability | Yes | N/A | ||||
| Flammability Class (DIN 12876-1) | III (FL) | I (NFL) | ||||
| Over-Temperature Protection / Failsafe Heater Control | Yes | |||||
| Low Liquid Level Protection | Yes | |||||
| WhisperCool Environmental Control Technology | N/A | Yes | N/A | Yes | N/A | |
| Cool Command Refrigeration Technology | N/A | Yes | N/A | Yes | N/A | |
| Reservoir Drain | Yes | |||||
| Included Software | PolyTemp Viewer, TDMS file viewer, USB driver, Time/Temperature Program Generator, PolyTemp Remote iPhone application | PolyTemp Viewer, TDMS file viewer, USB driver, PolyScience LabVIEW Virtual Instrument & Functions, Time/Temperature Program Generator, PolyTemp Remote iPhone application | PolyTemp Viewer, USB driver | N/A | ||
| Maximum Ambient Temperature °F | 95° | |||||
| Maximum Ambient Temperature °C | 35° | |||||
| Overall Dimensions (L x W x H) (inches) | 21.3 x 8.7 x 24.3 in | 21.3 x 8.7 x 25.4 in | ||||
| Overall Dimensions (L x W x H) (cm) | 54.1 x 22.1 x 61.7 cm | 54.1 x 22.1 x 64.5 cm | ||||
| Refrigerant | R134a | R404A | R134a | R404A | R134a | R134a |
| Environmental Compliance | RoHS, WEEE | |||||
| Shipping Weight (pounds) | 90 | 84 | ||||
| Shipping Weight (kilograms) | 40.8 | 38.1 | ||||
| Maximum Pressure (psi) | 4.3 | 3.5 | 2.3 | |||
| Maximum Pressure (bar) | 0.3 | 0.24 | 0.16 | |||
| Maximum Pressure Flow Rate (gpm) | 5.3 | 2.9 | 3.6 | |||
| Maximum Pressure Flow Rate (l/min) | 20.1 | 11 | 13.5 | |||
| Maximum Suction Flow Rate (gpm) | 3.9 | N/A | ||||
| Maximum Suction Flow Rate (l/min) | 14.7 | N/A | ||||
| Cooling Capacity @ -20°C (W) | 30 | 115 | 30 | 115 | 30 | 30 |
| Cooling Capacity @ 0°C (W) | 120 | 250 | 120 | 250 | 120 | |
| Cooling Capacity @ +20°C (W) | 200 | 360 | 200 | 360 | 200 | |
| Cooling Capacity @ +100°C (W) | 200 | N/A | 200 | N/A | 200 | |
| Included Hardware | Nylon hose adapters for 3/8", 1/4", and 3/16" | Fitting Kit for External Applications | ||||
| Heater Wattage | 1100 | |||||
| Electrical Requirements (VAC/Hz/Ph/A) | 120/60/1/12 | |||||
| Regulatory Approvals | ETL | |||||
FAQ
I would like to perform a heating / cooling program where the temperature ramps from one set point to another over time. Are the PolyScience 7 L Space-Saving Refrigerated & Heated Circulating Baths capable of this?
That depends on the controller used. Only the Advanced Programmable and Performance Programmable controllers can be programmed to perform ramps.
It is possible to have the circulation on without any temperature control being on?
No. If the circulation is on, then a temperature setting must be selected.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1746 reviews
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Product Reviews
★★★★★ 3
On the fence...
Will be updating review after I have used it for more than a week.
But so far here are the pros and cons:
Pros:
Smells good
Seems like a little goes a long way
Easy to apply
Cons:
Not sure if this is because I didn't use Sulfate free shampoo, but felt like with one wash I didn't get all the product out of my hair, so when It dried, it still looked greasy/oily
Will be washing my hair again with sulfate free shampoo, then will do another application in another day or so.
it says to use 2-3 times a week, so I'll use it 3 times a week for 2 weeks and then come back and update my review. But so far, it seams like a good product and for the money, it's a fair value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
★★★★★ 5
Best Shampoo/Conditioner I Have Ever Used
Scent: Nettle, Scent: Nettle
I purchased the Nettle Shampoo in hopes of getting my hair back to health after frying it off with bleach. I used it for the first time today and it is my favorite thing I have ever purchased for my hair. The smell of this is divine. I am not a sweet gourmand fan and this is just the most fresh scent I ever smelt I think. It honestly smells like a high end salon shampoo/conditioner duo. That is my favorite part about this product.
Second favorite is that it actually does work soooo well! I put in quite a bit of oils and hair care before washing my hair and all of those oils were removed without leaving any waxy greasy feel to my hair. I was concerned it wouldn’t come out because this shampoo is 99% lather free. But it worked SO GOOD! It doesn’t feel dried out and brittle either. It’s just perfect I can’t stress it enough. 10/10 I wish there were more way I can say how much I adore this product.
I have very fine hair by the way and it doesn’t weigh it down.
I will keep using this and will update in maybe a month with pictures!
Here’s the update: I used the shampoo and conditioner for idk probably a month. I’m not really sure. BUT I still absolutely love it. In the pictures I am going to attach, you can see that I had a decent amount of growth (the hair from the root that looks gray). My hair is quite oily after other hair care products were added so that’s why it looks the way it does. One more thing, the shampoo is very drying on the scalp I have noticed a little bit of dandruff and itchiness right after washing but I believe my scalp is getting used to it now because it’s getting less and less noticeable after every use. Keep in mind my hair had been chemically treated during the first week of use multiple times including bleach and box dye so that’s probably why it was irritated.
I still absolutely adore the scent and the way it leaves my hair feeling light and clean and shiny and SOFTTT!
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Reviewed in the United States on February 8, 2026
★★★★★ 5
Great product, poorly designed bottles.
Scent: Onion Unscented
I like this product! However, the bottles are heavy, bulky and awkward, what a waste of plastic. The design is poor. The conditioner top was broken, and the product was so thick it was very hard to try and get out of the unyielding bottle when I unscrewed it. Had to ask for a replacement. But it smells great and leaves my hair very soft. I had gotten one for my mother (87) but the bottle was a little much for her, too bad. There's less in it than what it looks like, as it has an inner, smaller container. A lot of trouble and cost to save a small amount of product.
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Reviewed in the United States on June 6, 2026
★★★★★ 4
Great product for damaged bleached hair
Scent: Keratin
Great shampoo and conditioner. Smooths the frizzy ends. I bleach my hair and I am unhappy that this product appears to have washed or altered the toner. I have platinum bleached hair and I put a pale blonde toner on it. I waited 4 days after I bleached and toned my hair to use your product and the end result was yellow hair not that beautiful pale blonde color. I will play around with purple shampoo and your product to see if I can find a happy medium because I do love the silky feeling on my damaged over-processed hair. Thanks for developing such a wonderful product for damaged hair
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Shiny Hair? Yes please
Scent: Onion Unscented
I have used this product just a few times since buying it. It made my hair shiny and smooth. Very minimal frizz. I bought it after doing research on how women helped their hair before all these hair products came out and Onion water was one of the top answers. After believing that I wanted onion smell in my hair, I came across this product and it actually smells SO NICE. After blow drying my hair, my hair was fuller and bouncier. I saw a difference right away. I have seen less hair in my shower drain and I honestly couldn't be happier with this combo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026