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Thermo CIR19 Circulating Water Bath with ±0.05 °C Temperature Uniformity and 19L Capacity

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Temperature Range (Metric)
Amb. +5°C to 100°C
Temperature Uniformity
±0.05 °C
Temperature Stability
±0.1 °C
Temperature Presets
4
Volume
5.0 gal./ 19L
All 11 specifications
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Specifications 11

Brands
Thermo Fisher Scientific
New/Used
Used
Temperature Range (Metric)
Amb. +5°C to 100°C
Temperature Uniformity
±0.05 °C
Temperature Stability
±0.1 °C
Temperature Presets
4
Volume
5.0 gal./ 19L
Internal Dimensions
12 x 15.3 x 7.6”
Dimensions
15.5 x 24.9 x 14” with Lid
Power
100-115V/200-230V, 50/60Hz, 1200W heater
Weight
40lbs

Product description

Precision Thermo CIR19 circulating water bath offers ±0.05 °C uniformity up to 100°C, ideal for enzyme and serological research.

The Thermo CIR19 Circulating Water Bath delivers precise temperature control and uniformity essential for biotechnology, molecular diagnostics, and serological studies. Featuring a 5-gallon (19L) stainless steel chamber, this water bath circulates heated water around the perimeter, achieving excellent temperature uniformity of ±0.05 °C and stability of ±0.1 °C within a range from ambient +5°C up to 100°C.

Key technical specifications include:

  • Temperature range: Ambient +5°C to 100°C
  • Temperature uniformity: ±0.05 °C
  • Temperature stability: ±0.1 °C
  • Volume: 19 liters (5 gallons)
  • Internal dimensions: 12 × 15.3 × 7.6 inches
  • Overall dimensions: 15.5 × 24.9 × 14 inches (with lid)
  • Heater power: 1200W, compatible with 100-115V or 200-230V, 50/60Hz
  • Weight: 40 lbs (18.1 kg)

The unit includes an intuitive icon-based graphic display for setting target temperatures and storing up to 4 temperature presets, supporting reproducible protocols widely adopted in bioprocessing and synthetic biology research. The hinged stainless steel gable lid accommodates taller vessels, enhancing versatility for various laboratory incubation or enzyme kinetics workflows.

Safety features include:

  • Over-temperature protection
  • Low-fluid level protection
  • Audible alarms for fault alerts

This circulating water bath is critical for applications requiring stable incubation conditions such as enzyme assays, biochemical reactions, and cellular incubation in biotechnology and clinical diagnostics. Its reliable temperature uniformity supports workflows in gene editing, molecular cloning, and biopharmaceutical production pipelines.

Included accessories:

  • Stainless steel lid
  • User manual
  • 120V power cord (10A)
  • 30-day warranty

The Thermo CIR19 is a robust and high-performance water bath solution for laboratories demanding precise temperature control and repeatability in critical biotechnological and biomedical engineering applications.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026