Thermolab Stability testing chambers are designed to meet, if not exceed, stringent quality standards recognized internationally. Offering all temperature and relative humidity conditions specified in ICH guidelines as below:

25°C/ 60% RH       30°C/ 65% RH       30°C/ 70% RH30°C/ 75% RH

40°C/ 75% RH       25°C/ 40% RH       30°C/ 35% RH         40°C/ NMT 25% RH

Today, other than Pharma and Bio-pharma products, stability studies are required for Alternate medicines, Food & Beverages, Medical devices, Cosmetics and other items to check the environmental effects on the product.

Walk-In Stability Chamber

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Standard Features

      • Prefabricated modular structure with PUF/Rockwool insulated panels and reinforced floor panel.
      • Interior Stainless Steel and Exterior PPGI/Stainless Steel finish.
      • Adequate illumination inside the chamber.
      • Glass view panel with specially designed leak proof door.
      • Racks & trays made of Stainless Steel with adjustable tray heights.
      • CFC free refrigeration systems.
  • Man, Machine, Product and Environmental Safety
    • Safety system to cut off the power supply in case of overshoot and undershoot of Temperature and Humidity conditions giving audio visual alarms.
    • Additional safety thermostat to cut off the power supply in case of temperature overshoots.
    • Low water level alarm for humidity system.
    • Emergency push button inside the chamber to de-energise magnetic lock.
    • Panic switch inside the chamber with audible alarm outside.
    • Manual unlocking mechanism for door from inside the walk-in chamber.
    • Environment friendly processes and refrigerants used.
  • Hydronic Cooling System
    • Thermolab has innovated a unique chilled water circulation system which reduces the electrical consumption by 60% and water consumption by 90%.
    • Factory assembled refrigeration system, avoiding on-site piping work.
    • This unique design enables maintenance of optimum cooling coil temperatures depending on the chamber conditions and resultant Dew Point.
    • The life of compressor increases as the running time of compressor has enormously decreased.
    • Compact plug and play design and can be placed behind the chamber or in the technical area.
  • Air Processing Unit (APU)
    • Designed to achieve optimum energy utilization with Integrated Cooling, Heating and Humidifying system.
    • The airflow is designed to have uniform conditions throughout the chamber.
    • Custom designedsupply and return air ducts particularly for chambers having larger storage volumes.
    • Sleek APU design resulted in increased storage volume.
  • Control Panel
    • Newly designed control panel as per international electrical safety standards.
    • PLC based control system with 7” colour HMI, and front mounted compact design.
    • Country specific electrical panel design to comply with local electrical standards.
    • Works on 110 / 220 / 440 Volts and 50 / 60 Hz

Additional features

    • Windows based SCADA software for data management having support for 21 CFR Part 11 compliance.
    • 100% redundant refrigeration & humidity systems with automatic changeover.
    • 8 point temperature and 8 point relative humidity monitoring sensors for online mapping.
    • Standby temperature and humidity sensors.
    • Printer interface and data storage facility.
    • Email and mobile alert systems.
    • Ethernet communication protocol.
    • Door Access Security system.
    • Remote audio visual alarm.

Technical Specifications


    • Temperature Control Accuracy/ Uniformity : ± 0.2°C / ± 1°C
    • Humidity Control Accuracy / Uniformity : ± 2% RH  /  ± 3% RH


    • Complete with IQ, OQ, PQ documents, Operation and Maintenance manuals

Technical Data

Note: Other sizes are available on request.
Above chambers are suitable for conditions such as 25 °C / 60% RH, 40 °C / 75% RH and 30 °C / 65% RH.
Low RH chambers are also available for conditions of 25 °C / 40% RH, 40 °C / 25% RH and 30 °C / 35% RH.
Biggest Walk in Stability Chamber manufactured, installed and validated is of 2,67,500 lit volume with size of W X D X H = 11.89l X 7.5d X 3.0h mtrs.
Detailed technical specifications of Thermolab Flame proof chambers can be provided on request.

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