SKU: 22189750167

DYNEO DD-300F 230V Refrigerated and Heating Circulators

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Description

DYNEO DD-300F 230V Refrigerated and Heating CirculatorsOverview DYNEO refrigerated heating circulators are suitable for temperature applications with circulation to an external apparatus or immersing a device in the bath tank. Refrigeration combinations afford low temperature capabilities from 20 C to 50 C with an upper temperature limit of 200 C. The DYNEO DD circulator incorporates easy change over for control of fluid circulation internally or externally. Unit fittings M16x1 male threaded adapters

Overview

DYNEO™ refrigerated/heating circulators are suitable for temperature applications with circulation to an external apparatus or immersing a device in the bath tank. Refrigeration combinations afford low temperature capabilities from -20 °C to -50 °C with an upper temperature limit of 200 °C. The DYNEO™ DD circulator incorporates easy change-over for control of fluid circulation internally or externally. Unit fittings M16x1 male threaded adapters including a pair of 8 and 12 mm hose barbs. A color TFT display with central rotary knob controller includes a multi-lingual interface, integrated programmer, Pt100 port for external temperature control, USB connection for external PC control and data-logging with digital options including RS232 port or an analog module interface for voltage or current control. PID temperature control provides ±0.01 °C stability. Infinitely variable centrifugal pump capacity of 8-27 L/min with pressure to 1.5-10.2 psi. Stainless steel bath tanks with integrated drain port.
Class III (FL) according to DIN 12876-1.

Included with each unit: 2 each barbed fitting for tubing 8 and 12 mm inner dia. (pump connections M16x1 male)

Features:

  • Powerful cooling machines
  • Suitable for internal and external applications
  • Optimized cooling coil design saves space in the bath tank
  • Powerful and infinitely adjustable pressure pump
  • Flow rate 27 l/min, pressure 8.7 psi
  • Easy switching between internal and external circulation
  • Large color TFT display, multilingual interface
  • Central rotary knob (controller) simplifies operation
  • Integrated programmer for 8 x 60 program steps
  • Integrated external Pt100 connection
  • USB port
  • RS232 interface or analog interfaces (optional)
  • Bath cover included with delivery
  • Integrated drain makes emptying liquid easy and safe.
Key Attributes
Type Stirred / Circulating Baths
Incubation Yes
Refrigeration Yes
Temp Range (°C) A -25 to 200 (DD-300F model is -25)
Capacity (L) 4
Circulation 8-27 l/min
Brand Julabo
MaxFlow Rate (l/min) 27
Temp Stability (°C) ±0.01
Timer Yes
Alarms Yes
Digital or Mechanical Digital or analog option
Data connection USB and Optional analog or RS232 connection
Tank Material Stainless Steel
Sample Agitation No
Media Racks Available No
Warranty (years) 1
Weight (lb) Varies by model
Width (in) Varies by model
Depth (in) Varies by model
Height (in)

Varies by model

 

Manufacturer Specifications

Model

DD-300F

Dimensions (W × L × H)

9.4 x 16.5 x 26 in.

Filling volume

3 ... 4 l

Weight

61.1 lbs

Pump connections

M16x1 male

Barbed fittings inner diameter

8/12 mm

Working temperature range

-25 ... +200 °C

Temperature stability

±0.01 °C

Setting the resolution of the temperature display

0.01 °C

Ambient temperature

+5.0 ... +40.0 °C

Data based on voltage version:

115V/60Hz (Nema N5-15 Plug)

Heating capacity

1 kW

Cooling capacity (Medium: Ethanol)

200°C = 0.3 kW / 20°C = 0.3 kW / 10°C = 0.3 kW / 0°C = 0.27 / -10°C = 0.19 / -20°C = 0.08 kW

Pump capacity flow rate

8 ... 27 l/min

Pump capacity flow pressure

1.5 ... 10.2 psi

Viscosity max.

50 cST

Refrigerant stage 1

R134a

Global Warming Potential for R134a

1430

Filling volume

100 g

Carbon dioxide equivalent

0.143 t

Bath tank

Stainless steel

Bath cover

integrated

Usable bath opening (W x L / D)

5.1 x 5.9 / 5.9 in.

Cooling of compressor

1-stage Air

Classification according to DIN12876-1

Classification III (FL)

Pump function

Pressure Pump

Pump type

Immersion Pump

External pt100 sensor connection

integrated

Integrated programmer

8x60 steps

Temperature control

PID2

Absolute temperature calibration

3 Point Calibration

Temperature displayTemperature display

3.5" TFT Display

Temperature settingTemperature setting

Shaft Encoder

Electronic Timer hr:min

99 ... 59

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 22189750167

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E
enzofrost
Los Angeles, US
★★★★★ 4
Very solid option for comfort but the pattern of the shirt I received was off-putting
Size: Small, Color: Grey White Stripe
The shirt itself is great, sizing is spot on with an athletic tapered fit which I always prefer in a polo. The material is classic maelreg cotton feeling without the heaviness and water holding of typical cotton shirts. You can run in these polos, workout, go out to lunch or dinner, or simply sleep in these they are so comfortable. It's the patterns offered that made me return this and another I tried out. Colors are spot on with descriptions but the patters are small enough to play tricks on eyes, I received complaints from both my wife and daughter (separately) about the pattern hurting their eyes hence the 4 star instead of 5. Others may love the patter but know that it isn't as universally pleasing as more other shirts offered by this brand
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2026
R
Verified Purchase
Ramón Quezada
Waukegan, US
★★★★★ 5
Good
Size: Medium, Color: Navy Stripe
Good, soft material
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Reviewed in the United States on May 22, 2026
C
Verified Purchase
chris scharf
Port Orchard, US
★★★★★ 5
Comfortable, and good quality
Size: X-Large, Color: Cobalt Stripe
Nice quality for the $
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
P
Pizza face
Waukegan, US
★★★★★ 5
Looks decent, doesn’t cook me in summer
Size: Medium, Color: Grey White Stripe
Bought this mainly as another golf shirt and wasn’t expecting much. Material is lightweight and comfortable enough during warmer days. Fit was pretty close to expected sizing. Sometimes inexpensive golf shirts end up feeling stiff or cheap after washing. This one has held up fine so far. Good everyday option.
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Reviewed in the United States on May 26, 2026
S
ScottsdaleCoug
Cuba, US
★★★★★ 5
Most Comfortable Hoodie I’ve Ever Worn…
Color: White Light Blue Grid, Size: Medium, Color: White Light Blue Grid, Size: Medium
Arguably, this is one of the most comfortable hoodies I’ve ever worn—and that’s saying something. The fit, feel, and overall look just come together in a way that makes this an easy go-to. I’ve become a big fan of M MAELREG, and this hoodie continues that trend. Their focus on clean, sharp styling really shows here. It has a modern, athletic look without trying too hard, and it works just as well for casual wear as it does for something a bit more put together. My wife immediately noticed it—and that’s always a good sign. The standout feature is the fabric. It’s lightweight but not flimsy, with just the right amount of structure. The stretch is excellent, and it moves naturally without feeling restrictive. It also does a great job managing heat, which is a big deal here in Arizona. Whether I’m out running errands, heading to a showing, or just wearing it around the house, it stays comfortable and breathable. Another thing I appreciate is how versatile it is. This isn’t just a “gym hoodie” or something you only wear lounging—it genuinely fits in almost anywhere. It has that polished, performance look that makes it easy to dress up or down depending on the situation. At roughly $40, this feels like a strong value. You’re getting a well-designed, comfortable piece that looks good and performs even better. Final thoughts…. ✔️ Extremely comfortable with a lightweight, performance feel.
 ✔️ Clean, modern design that looks sharp in multiple settings.
 ✔️ Breathable and well-suited for warmer climates like Arizona.
 ✔️ Great stretch and mobility without feeling too thin.
 ✔️ Strong value for the price point.
 ⭐️1 star — I don't endorse this at all, poor quality. ⭐️⭐️ 2 stars — I don't endorse it: has multiple faults, or significantly overpriced. ⭐️⭐️⭐️ 3 stars — It's passable: it has some faults, some compromises, but the quality is acceptable for what it is. ⭐️⭐️⭐️⭐️ 4 stars — Product quite acceptable, and it does what it promises. ⭐️⭐️⭐️⭐️⭐️ 5 stars — Product that I totally endorse. Blown away. Drop everything and buy it!
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Reviewed in the United States on April 23, 2026

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