EWS chambers are solid, one-piece construction, using fiberglass insulation and an angle-iron frame. The stainless steel interior liner is reinforced and continuously welded, including leak-testing for integrity.
(Conventional chambers, like our EWP models, are built using panels with foam insulation that cannot withstand higher temperatures and are more susceptible to leaks at the seams under extreme conditions, such as fast temperature cycling.)
The angle-iron frame provides enough structural strength to allow a full-opening door for easy loading of large arrays without restriction. A full-opening door can also allow floor-space saving over panel chambers.
Overall temperature range:
-65°
85° Conventional panel chamber
-65°
150° EWS solid chamber
Allowable temperature change rate:
0°C/min.
10°C/min. Conventional panel chamber
0°C/min.
15°C/min. EWS solid chamber
Note: Actual change rate capability is determined by selection of heating/cooling system based on your requirement. Temperature range for humidity control: 
Easy-to-use ProgrammerIn addition, the SCP-220 programmer makes running an ESPEC environmental test chamber a breeze. The full-color, touch-screen interface is remarkably easy to use and understand. The SCP-220 can be managed remotely via our new Ethernet/LAN-based Web Controller, serial port, or GP-IB/LabView.

| Model / Link | Interior Dimensions (W x D x H) |
Interior Volume | Temperature Range | Humidity Control | Change Rate (heat/cool) |
Notes |
|---|---|---|---|---|---|---|
| EWS183 | 48" x 70" x 94" | 183 cu. ft. | (-35 or -65) to 150°C | Optional | 1-15°C/min. | Representative model: size and performance customized to your needs |
| EWS364 | 62" x 108" x 94" | 364 cu. ft. | (-35 or -65) to 150°C | Optional | 1-15°C/min. | Representative model: size and performance customized to your needs |
| EWS499 | 85" x 108" x 94" | 499 cu. ft. | (-35 or -65) to 150°C | Optional | 1-15°C/min. | Representative model: size and performance customized to your needs |
| Click model number for details, including metric & english units. | ||||||