Stainless Steel Thermal Capsule – The Reliable Alternative to Glycol Bottles for pharmaceutical industry

The STN Stainless Steel Thermal Capsule is designed to pair with thermometer probes to dampen temperature fluctuations as a buffering block inside temperature-controlled chambers. This ensures more stable and accurate monitoring, which is critical for environments where vaccines worth billions of dollars are stored in pharmaceutical industry.

Traditionally in pharmaceutical industry, temperature probes are placed in glycol-filled bottles to minimize false spikes caused by frequent door openings. However, liquid-based solutions present challenges such as evaporation, spillage, and the need for refilling. Our stainless-steel thermal capsules eliminate these issues, offering a liquid-free, maintenance-free, and hygienic solution with the same buffering performance as glycol bottles (validated by test results—see diagram below).

Key Features & Benefits

  • Superior Temperature Stability – Effectively minimizes fluctuations for more reliable readings.
  • Wide Compatibility – Suitable for storage conditions from 2–8 °C down to –80 °C.
  • Liquid-Free Design – No risk of spills, evaporation, or maintenance.
  • Durable & Hygienic – Constructed from 304L stainless steel for longevity and easy cleaning.
  • Flexible Probe Integration – Accommodates up to two probes (Ø6 mm max) with replaceable probe holders and custom connector options.
  • Convenient Design – Detachable bottom allows quick inspection of probes inside.

Smart Probe Management

The thermal capsule features two top connectors:

  • One for the probe monitoring chamber temperature.
  • One optional port for an additional probe, such as a standard probe for calibration.

Both connectors are detachable, and STN provides custom connector options to fit different probe sizes. The capsule also has a detachable bottom, allowing easy inspection of probes inside.

With its precision engineering and user-friendly design, the STN Thermal Capsule as a thermal buffer block is the ultimate substitute for glycol-filled bottles—ensuring stability, accuracy, and peace of mind for critical cold-chain applications.

STN Stainless Steel Thermal Capsule
The smarter alternative to glycol bottles.

  • Stable & Accurate: Damps temperature fluctuations for reliable monitoring.
  • Liquid-Free: No spills, evaporation, or refilling.
  • Wide Range: Performs from 2–8 °C down to –80 °C.
  • Durable & Hygienic: Made from 304L stainless steel, easy to clean.
  • Flexible: Supports up to 2 probes with customizable connectors.

Protect your vaccines and critical samples with precision, reliability, and peace of mind.

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