ESPEC BTL-433 Criterion Temperature Humidity Chamber

The ESPEC BTL-433 Temperature Humidity Chamber is meticulously engineered to meet the rigorous demands of temperature and humidity testing in confined laboratory spaces. This remarkable unit from the Criterion Series maximizes workspace efficiency with a unique design that delivers exceptional performance without compromising on space.

With a generous interior width of 19.5 inches—3.5 inches more than traditional models—the BTL-433 provides an expansive 4 cubic feet (110 liters) of testing space while maintaining a remarkably compact exterior. This design enables it to fit seamlessly into smaller labs, allowing direct installation against walls thanks to top-ventilated refrigeration and side utility connections.

Key Specifications

• Interior Volume: 4 cu. ft. / 110 Liters
• Interior Dimensions: (W x D x H) 19.6" x 15" x 23.6" / 500 x 380 x 600 mm
• Exterior Dimensions: (W x D x H) 30.25" x 33.5" x 46" / 770 x 850 x 1170 mm
• Temperature Range: -20° to 180°C (-4° to 354°F)
• Humidity Range: 10% - 95% RH (refer to datasheet for detailed chart)
• Average Change Rate: 1.5°C/min heat & 1.2°C/min cool (empty; rates lower with 50Hz power)
• Power: 115V, 16A max
• Temperature Fluctuation: ±0.5°C
• Humidity Fluctuation: ±5%

Notable Features

• Quiet operation with a noise level of 65 dBa for a peaceful lab environment.
• Designed for efficient, flush installation against walls, maximizing lab space.
• Durable stainless steel exterior for longevity and easy maintenance.
• Complete thermal break around the doorframe ensuring consistent testing conditions.
• Incorporates a 50mm (2”) diameter cable port with a flexible silicone plug for easy access.
• Triple-layer overheat protection along with overcool protection to safeguard test samples.
• Convenient lift-off service panels coupled with left-side electrical access streamline maintenance.
• Equipped with a detachable eight-foot power cord for flexible setup.
• Direct water supply connection available for continuous operation with optional supply tank.
• ETL listed electrical panel complies with UL 508A standards for enhanced safety.

Experience the precision and reliability of the ESPEC BTL-433, your ideal partner in comprehensive temperature and humidity testing within a compact and efficient framework.