Main -> Heating units, refrigerating units -> Temperature controllers -> Circulator baths
Unistats® – Dynamic Temperature Control Systems, Huber

The dynamic temperature control systems of the Unistat series revolutionized fluid temperature control engineering. Unistats are ideal for fast and highly accurate temperature control of external applications, such as reactors, autoclaves, miniplants, pilot systems, reaction calorimeters, or distillation plants. Compared to conventional circulator baths, Unistats convince with their unique thermodynamics for highly accurate and reproducible results. The Unistat technology ensures shortest possible heating and cooling times as well as wide temperature ranges without time-consuming fluid change. Choose from a portfolio of more than 60 models with cooling capacities from 0.7 to 130 kW. Unistat temperature control systems offer a range of professional functions for all types of demands. They feature a colored touch screen display with comfortable menu navigation and graphical real-time indication of temperature curves as well as an intelligent cascade temperature control and powerful circulation pumps with speed control, as well as a programmer, ramp function, calendar start, adjustable user menus, sensor calibration, and analog and digital interfaces.

Advantages & functions:

  • Working temperatures from -120°C to +425°C
  • Uniquely powerful thermodynamics
  • Highly accurate, intelligent temperature control
  • Maximum process stability and reproducibility
  • Ultra-short heating and cooling times
  • Powerful cooling performance from 0.7 to 130 kW
  • Wide temperature ranges without change of fluid
  • Increased thermal fluid life
  • Extra-small footprint
  • Brilliant 5.7″ TFT touch screen with graphic display
  • 2x USB (host and device), Ethernet and RS232 interface
Unistat cooling heating thermostats up to -40°C

As a standard, all models come with natural refrigerant.
eo = for externally open operation.

TypeTemp. range
°C		Pump pressure max.
l/min / bar		Heater capacity
kW		Cooler capacity at
200/20/0/-20/-30°C
kW		Dimensions (W×H×D)
mm		Order No.
Petite Fleur-40 – 20033 / 0.91,50.48/0.48/0.45/0.27/0.16260 × 450 × 50410 59 61031
Petite Fleur w-40 – 20033 / 0.91,50.48/0.48/0.45/0.27/0.16260 × 450 × 50410 59 61032
Petite Fleur eo-40 – 20033 / 0,91,50,48/0,48/0,45/0,27/0,16260 × 450 × 50410 59 61033


Unistat circulating thermostats up to -55°C
TypeTemp. range
°C		Pump pressure max.
l/min / bar		Heater capacity
kW		Cooler capacity at
200/20/0/-20/-30°C
kW		Dimensions (W×H×D)
mm		Order No.
Unistat tango-45 – 25055 / 0.91)1.5/3.00.7/0.7/0.7/0.7/0.4/0.06426 × 270 × 63110 59 61001
Unistat tango wl-45 – 25055 / 0.91)1.5/3.00.7/0.7/0.7/0.7/0.4/0.06426 × 270 × 63110 59 61002
Unistat 405-45 – 25055 / 0.91)1.5/3.01.0/1.0/1.0/1.0/0.6/0.15426 × 307 × 63110 59 64051
Unistat 405w-45 – 25055 / 0.91)1.5/3.01.3/1.3/1.3/1.3/0.7/0.15426 × 307 × 63110 59 64052
Unistat 410w-45 – 25055 / 0.91)1.5/3.01.7/2.5/2.5/1.5/0.8/0.2425 × 360 × 63610 59 64102
Unistat 425-40 – 250105 / 1.52)2.02.0/2.0/2.0/2.5/1.8/0.2460 × 554 × 145310 59 64251
Unistat 425w-40 – 250105 / 1.52)2.02.8/2.8/2.8/2.5/1.9/0.2460 × 554 × 145310 59 64252
Unistat 430-40 – 25090 / 1.72)4.03.5/3.5/3.5/3.5/2.2/0.3460 × 554 × 145310 59 64301
Unistat 430w-40 – 25090 / 1.72)4.03.5/3.5/3.5/3.5/2.2/0.3460 × 554 × 145310 59 64302
Unistat 510-50 – 250105 / 1.52)6.05.3/5.3/5.3/5.3/2.8/0.91100 × 755 × 137010 59 65100
Unistat 510w-50 – 250105 / 1.52)6.05.3/5.3/5.3/5.3/2.8/0.9460 × 554 × 145310 59 65102



1) Pressure regulation VPC integrated
2) Pressure regulation VPC via optional bypass
Natural refrigerant available on request. Flat-design models available on request.

Unistat circulating thermostats up to -85°C
TypeTemp. range
°C		Pump pressure max.
l/min / bar		Heater capacity
kW		Cooler capacity at
250/200/100/0/-20/-40/-60/-80°C
kW		Dimensions (W×H×D)
mm		Order No.
Unistat 705-75 – 25055 / 0,91)1.5/3.00.6/0.6/0.6/0.65/0.6/0.6/0.3/–425 × 400 × 72010 59 67051
Unistat 705w-75 – 25055 / 0,91)1.5/3.00.6/0.6/0.6/0.65/0.6/0.6/0.3/–425 × 400 × 72010 59 67052
Unistat 815-85 – 25040 / 0,91)21.3/1.3/1.3/1.5/1.5/1.4/1.2/0.2460 × 604 × 146510 59 68151
Unistat 815w-85 – 25040 / 0,91)21.5/1.5/1.5/1.5/1.5/1.4/1.2/0.2460 × 604 × 146510 59 68152



1) Pressure regulation VPC integrated
Natural refrigerant available on request.