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The Criterion temperature/humidity chamber series provides an economical and space-saving solution for a variety of testing requirements. The chamber's interior size is 3.5 inches wider than traditional benchtops, yet the exterior is 20% narrower. The BTL-433 model uses 115V power, meaning no special power hook-ups.
The four cubic foot workspace is the largest to be found in a benchtop unit, while requiring less footprint than even smaller comparable chambers. The vertical configuration saves bench space, plus the refrigeration’s ventilation design allows installation against a wall for even more space savings.
The programmer includes a temperature alarm as just one part of ESPEC's three-tiered over-temperature protection system. A thermal fuse and a user-set independent limit are also included. In addition, a specimen power terminal allows the user to safely operate powered equipment inside or with the chamber.
Controlling humidity in a small environmental chamber can be especially challenging. ESPEC expertise in humidity control brings intelligent design that is carefully integrated into the Criterion chambers. The humidity subsystems are designed for reliability, convenience, and performance:
Compare Benchtop Models Side-by-side comparison of up to three models.
|Model / Link||Interior Dimensions
(W x D x H)
|Interior Volume||Temperature Range||Humidity Control||Change Rate
|BTL-433||19.6" x 15" x 23.6"||4 cu. ft.||-20 to 180°C||Yes||up to 1.5°C/min.|
|BTX-475||19.6" x 15" x 23.6"||4 cu. ft.||-70 to 180°C||Yes||up to 2.75°C/min.|
|Click model number for details, including metric & english units.|