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One In Stock
Can ship in a Week or less!

Lunaire CEO-958-4-B-SP Temperature & Humidity Steady State Chamber Serial#: 126357

In Stock!  Available for Rent or Purchase.  Can Ship in a week or less!

Lunaire’s steady-state chambers are available in four convenient sizes. With work space sizes of 8, 16, 32, and 58-cubic-feet and a variety of temperature and humidity combinations, these chambers provide the flexibility for a wide range of uses.


  • Meets a variety of needs with availability in four sizes and multiple temperature and humidity combinations
  • Temperature/humidity settings are housed conveniently in one controller and allow for hands-free operation
  • Designed for quick shipping, easy installation, and consistency over controls, utility requirements, and heat output
  • Air intake and exhaust tubes with manual dampers vent undesirable process moisture and vapors, protecting the product
  • Highly efficient horizontal airflow system provides maximum temperature uniformity in testing
  • Safety-minded low limit and high limit temperature shutdown circuits sound, limiting unwanted results


  • Electric Incoloy-sheathed tubular heaters
  • Single stage reciprocating type compressor with Non-CFC refrigerant
  • Vapor-Flo Humidity Generator
  • Centrifugal type blower wheel with external mounted motor for air circulation
  • Door Gasket Trough and Chamber Drain
  • Non-ramping, manual mode
  • Direct printing to a serial printer
  • Direct connection to a PLC or computer workstation
  • High definition, LCD display with four digital input lines
  • Solid Shelves included

Pricing Information

  • List Price New: $32,186.00
  • Purchase This Unit For: 21,947.00
  • Rent This Unit For: $2,800.00 / month


  • Temperature Range: 0ºC to 99ºC
  • Humidity Range: 20% to 96% RH in the temperature range of 20ºC to 85ºC, limited by a 5ºC dew point and the accuracy of the humidity sensor.  The test conditions are based on ambient conditions of 22ºC and 50% RH
  • Interior Dimensions: 60" wide x 28" deep x 60" high
  • Exterior Dimensions: 70" wide x 32" deep x 91" high  
  • Electrical Power: 208/230V, 1 Phase, 60HZ-
  • AMP Fuse: 70A
  • AMP Draw: 55
  • Heater: 5.0 Kw
  • Weight: 1845 pounds
  • FG# R717852


Control System

Synergy NANO



  • Deionized Water Cartridge System
  • Door Style: Door with Viewing Window
  • Special ETO Option : Install an RH deviation alarm set for +/- 5% RH.
    Includes a red pilot light, buzzer, and alarm silence switch. This will alert
    the operator if the RH set point deviates during process.
  • Recorders: Truline 2 Pen
  • 8 Shelves
  • Water Supply: Water Regulator Assembly
  • Warranty: 1 Year labor & 1 Year parts.
  • Quantity (2) 2" ports with cover come standard with this unit and are
    centered in the work space on the back wall of the chamber.


  • Additional shelves
  • Casters
  • Air Dryer for Low RH operation

Additional Images