Stability Rooms and Environmental Rooms

Used to test or store large batches of products

CSZ Walk-In stability rooms provide a stable, temperature and/or humidity-conditioned environment for worry-free operation with a control system that is easy to use and saves you time. These chambers are designed for stability studies and testing large batches of product.

Environmental rooms are available in temperature only or temperature & humidity. Constructed with 4” (10 cm) foam modular panels and ceiling mounted conditioning systems. All CSZ stability rooms meet ICH Q1A guidelines. Each conditioning system is tested before shipment. Our factory-trained service team can also assist with the assembly, start-up and training of your new environmental room.

Stability Testing Quote

  • Meets ICH Q1A Guidelines
  • Hassle-free installation
  • Flexible design
  • IQ/OQ/PQ validation protocol template included (onsite validation service available)


  • Specifications
  • Instrumentation
  • Communications
  • Cabinet
  • Refrigeration
  • Humidity
Model WMST(H)-288  WMST(H)-512  WMST(H)-800  WMST(H)-1152  WMST(H)-2025  WMST(H)-2916 
Workspace (Other sizes available) 288 cu. ft. 512 cu. ft. 800 cu. ft. 1152 cu. ft. 2025 cu. ft. 2916 cu. ft.
Interior Dimensions (approx)** 6'W x 6'D x 8'H
(1.8m x 1.8m x 2.4m)
8'W x 8'D x 8'H
(2.4m x 2.4m x 2.4m)
10'W x 10'D x 8'H
(3m x 3m x 2.4m)
12'W x 12'D x 8'H
(3.7m x 3.7m x 2.4m)
15'W x 15'D x 9'H
(4.6m X 4.6m X 2.7m)
18'W x 18'D x 9'H
(5.5m x 5.5m X 2.7)
Temperature Range
-20°C to +60°C (-4°F to +140°F)
Optional Humidity Range
20% to 95% RH (optional lower RH available)
Temperature Tolerance
± 0.3°C (± .54°F)
Humidity Tolerance
± 2.5%*
Temperature Uniformity
Designed to your application*
Touch Screen Controller
  • CSZ EZT-570 Touch Screen is a 21 CFR Part 11 compliant controller designed to save chamber programming and setup time. Standard features data logging, data file access via memory stick or PC, Ethernet control and monitoring, alarm notification via email or phone text message, full system security, online help & voice assistance in multiple languages and more.
  • A Temperature Limit and alarm is included to protect your product.
EZ-View Software
  • RS-232/485 serial communications, Ethernet control and monitoring offer a selection of communications options.
  • EZ-View optional software allows user to control and monitor up to 20 chambers from any location.
Stability Walk In Cabinet
  • Fog-free viewing window and interior light makes viewing workspace hassle free.
  • Stainless Steel Interior liners are constructed from Type 304 brushed stainless steel that is easy to clean and thoroughly sealed to prevent moisture migration.
  • White Embossed or aluminum scratch resistant exterior
  • Vapor proof lights
Stability Walk In Chamebr
  • Pressure gauges allow operating pressures to be continuously monitored and provide early warning indicators.
  • CSZ test chambers utilize refrigerants which are environmentally safe, non-flammable, non-explosive and have a Zero Ozone Depletion Potential (ODP).
Stability Walk In Humidity Chamber
  • An electronic humidity sensor is used on all humidity models for accuracy and minimal maintenance.

*Better tolerance may be achieved over narrow ranges. Please consult factory to discuss your requirement.

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