Altitude Chambers

Simulating altitude/vacuum and temperature for combined environmental testing

Our Altitude Chambers combine temperature and altitude with optional humidity to test basic components or subassemblies designed for use in a variety of industries. With a CSZ altitude chambers, you can control the temperature environment for testing while simulating various altitudes from site level to 65,000 feet (42 Torr). Altitude testing may be continued without temperature control up to 200,000 feet (.169 Torr). This same chamber may also be used as a temperature/humidity cycling chamber at site level only.

Altitude Chamber Quote

  • Easy operation
  • Dual purpose for greater ROI
  • Heavy-duty construction for harsh testing
  • Robust Vacuum system for reliability


  • Specifications
  • Dimensions
  • Instrumentation
  • Communications
  • Cabinet
  • Refrigeration
  • Humidity

Model CA(H) 
Size 8, 16, 32, or 64 cu. ft. (230L, 450, 900L, or 1810L)
Custom Sizes Available
Temperature Range Single Stage: -34°C to +190°C (-30°F to +375°F)
Tundra® Range: -45°C to +190°C (-50°F to +375°F)
Tundra® II Range: -50°C to +190°C (-58°F to +375°F)
Cascade: -70°C to +190°C (-94°F to +375°F)
Optional Humidity Range 10% to 95% RH
Altitude Range 100,000 FT (8.2 Torr) Standard
200,000 FT (.169 Torr) Optional

Model Internal Dimensions (WxDxH)
CA(H)-8 24" x 24" x 24"
(61cm x 61cm x 61cm)
CA(H)-16 30" x 30" x 30"
(76cm x 76cm x 76cm)
CA(H)-32 38" x 38" x 38"
(97cm x 97cm x 97cm)
CA(H)-64 48" x 48" x 48"
(122cm x 122cm x 122cm)

Touch Screen Controller
  • The CSZ EZT-570i Touch Screen Controller offers a 7” (18 cm) or optional 10” (25 cm) touch screen and the latest in test chamber programming for ease of use. Comes standard with data logging, data file access via memory stick or PC, Ethernet control and monitoring, alarm notification via email or phone text message, data file backup, full system security, online help & voice assistance in multiple languages and more.
  • A Temperature Limit and alarm is included to protect your product.
  • Safety relay connection is provided to protect your device under test by removing power to it when the chamber is not running.

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.

Altitude Test Chamber
  • 3" (8 cm) ports for ease of cable routing – larger sizes available.
  • Fully welded ports and shelf pilasters eliminate potential leaks, increasing the life of your chamber.
  • All liners are constructed from Type 304 brushed stainless steel that is easy to clean. All seams are continuously welded to form a hermetically sealed unit to prevent moisture migration.
  • The chamber exterior is constructed of formed sheet steel for structural strength and finished with a textured polyurethane paint. Customer specified paint combinations are available upon request.
  • Robust Vacuum System - Heavy duty, high capacity vacuum pumps provide reliable performance. System is equipped for controlling altitude setpoints automatically with a regulating rate of ascent and descent by using manual adjustable valves. Flexible section in vacuum lines also prevents transmission of adverse vibration.

Altitude Chamber Refrigeration
  • 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).

Altitude Humidity Chamber
  • An electronic humidity sensor is used on all humidity models for accuracy and minimal maintenance.
  • Humidity water filtration system to filter impurities and protect chamber interior