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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
4.1 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
I don't know how I ever lived without it.
I'm very happy with this device. My laptop doesn't have an ethernet port and only has one USB-C SuperSpeed port, so I bought an ethernet to USB-C cable to connect my ethernet switch to the Anker and into my laptop's USB-C port, and it works great. I don't need a fast internet connection for the things I do, so my service is only a 50mbps symmetrical up/down connection, and that's what I get even while transferring files from my external between other devices, charging my phone, and using composite devices.
I bought the Anker 100W Compact and Foldable USB C Charger for it and it charges my S24 extremely fast.
It's very well built, yet super lightweight. I love the sleek, slender design. It's the perfect size to easily slide into a pocket, store in a desk drawer, or keep handy in a laptop case or backpack.
Using it is easy. Just plug it into your computer and plug your devices into it. Just make sure you have a power supply for it if you're charging or powering other devices, using external storage, or running anything else that taxes USB power.
I have had ZERO connectivity issues with it — no random disconnect/reconnect blips, no failed transfers for huge amounts of data that have taken up to 45 minutes, no static his or crackle when my headset is running through it... no problems at all. It's actually kind of spooky now that I think about it... I can't recall a time I've ever had a similar device that didn't have some nuance that got under my skin, like a loose connection, random disconnections, having to reinstall the drivers all the time, or having to troubleshoot just to get it connected for the first time.
The most stress I've put it through was with my keyboard connected, ethernet running through it, my S24 charging and transferring about ~20gb of pictures and videos to my 2T external HD at the same time that my laptop was transferring about ~500gb of media and documents to the HD, too, and I was surprised by how warm it DIDN'T get.
My only complaint is trivial and unique to my situation — I wish output cord was longer. About six inches would do. My laptop sits up on an adjustable stand that clamps to my desk, and the end where the output cord is hangs a few inches off of my desk. This puts extra stress on the USB-C port and can wear it out faster or damage it.
I haven't had a use for the HDMI port yet, but I eventually will. I use all of the other ports for my work and personal devices, though. These include: a 2tb external hard drive; a Poly Blackwire 3320 Series headset; a dongle for a wireless mouse/keyboard combo or a wired keyboard and a dongle for a wireless mouse; my Galaxy S24 charges and transfers files through it super fast; I have several thumb drives ranging from 20gb to 512gb that I regularly use; I recently bought an RCA/S Video-to-USB converter to digitize old home movies I plug into it, too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025
★★★★★ 5
Anker wins again.
Worked well for usb hub but hdmi was not reliable. Disappointed because usually Anker products are good quality. UPDATE: Anker voluntarily offered a refund so my faith in Anker has been fully restored.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
★★★★★ 5
Perfect with a MacBook
The Anker USB C Hub works great with my MacBook Air. I paired it with the Anker 100W MacBook charger which plugs directly into the USB C Hub so I only have to plug in one cable like a true docking station. My Apple MagSafe charger stays in my briefcase so I always have a charger when I'm away from my desk.
I also plug in my external monitor and an external hard drive.
I highly recommend this product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 5, 2026
★★★★★ 5
3 YEARS LATER REVIEW, and 2 YEARS LATER REVIEW
Style: 7 in 1 【1 HDMI】
(3 years now I have had this and today is July 12th 2025. I literally love this thing so much I came back yet again to tell you after 3 years it works just as good as the day I originally got it. It is scuffed and scratched, has the remnants of tape and stickers i applied over the years, it has seen much wear, tear, and abuse by me, and works perfectly! ANKER makes great products, but especially nowadays when there is so much cheap garbage out there, everything i have brought by ANKER just works everytime. The only time I have had an issue? Is when I broke something, or dropped it under a car wheel (I actually did this with the first one I bought, not from Amazon, but a few months beforehand, it still worked until I started messing with it to see if it still functions lol), because I tend to be extremely irresponsible with my portable electronics. If you do buy this, and you forget to order a power supply, I bought a 100w power supply from Walmart for it, that is also three years old and works great as well. If it makes it 5 years, I'll be back to tell you about it. Now, keep reading to see the first review i left awhile ago)
This thing is so awesome. I had to come back and write another review first off. You will need a 100 watt power supply to go with it separately just get that out-of-the-way. You can get one at Walmart for fairly cheap. That’s what I did and after about six months, I actually glued the hub permanently to the power supply so they would never be separated now let me tell you how versatile this thing is you can take your iPad plug it into the little USB-C sticking out of the end of it then you could take an HDMI cord from the hub and plug it into your TV. If you have a splitter, you can do it into several TVs or several monitors. It has a microSD card for all your pictures. It has a not as micro a little bigger memory card can’t remember what they’re called but they go in like cameras and stuff SD cards? It reads those two it’s got a USB-C out so you can charge your phone if you have an iPhone and an iPad like I do it connects your iPhone into your iPad together so you can play video games on your phone on your giant screen of your iPad running an HDMI cord to your TV now you’re playing on your phone on your monitor and your TV and your iPad all at the same time and see how awesome I’m saying this is you can plug a keyboard into it and a microphone and a mouse and now your live streaming your gaming on your iPad your monitor your TV your projector I’ve even hooked mine to a projector! I’ve literally spent hours trying to see how many items I could plug into this thing and run at the same time just so I could put it on my YouTube channel and show off and have people give me no props, shake their heads, and say I’ve got way too much free time on my hands. Doesn’t that sound amazing? That could be you. One guy who made fun of me relentlessly in the comment section a week later asked me where I could get one and guess what I told him I could get one for twice the amount that I paid for it and he paid me so I win guess what I do with the money? I bought a midi cord that I plugged into my MPC so I could play music on GarageBand on my phone. Had another cord going from the hub to a monitor where I could watch OBS for studio live streaming as a third cord projected the entire image on a wall, 6 feet across while I produce this music a microphone that I also had plugged it into the hub was recording me freestyle horribly because I cant rap, but all of those magic moments captured on a small SD card also plugged into the hub at the time I just left in the hub and when I was done, all I had to do was unplugged the USB-C from my phone into my computer and transfer all the information over i’ve plugged my GoPro into it from my GoPro. I was able to power a light and a microphone this thing is endless possibilities. Do yourself a favor and get one anchor products are amazing and guess what I’ve stepped on this thing countless times my dog thrown it across the room. It’s fallen downstairs. I dropped a puddle of water put it in a bowl of rice it still works. I should be selling these things man they’re incredible.
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Reviewed in the United States on April 23, 2024
★★★★★ 5
Durable, highly functional, and super reliable
Style: 7 in 1 【1 HDMI】
4 years since purchasing this and it's still just as useful, functionality is perfect, and compatibility is high. I use this with a Linux Pixelbook most often, but it's convenient for every device I own, including Android phones and tablets. The HDMI output works really well with devices capable of video output over USB-C, and this feature has never degraded for me. I routinely loaned it to students and professors for presentations when their own HDMI dongles or SD card adapters failed and it always immediately worked. I recently ordered an Anker 555 8-in-1 hub for the addition of ethernet, but I will continue using the 341 as well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
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