Cincinnati Sub-Zero (CSZ) is a leading brand of environmental test chambers designed to simulate conditions such as temperature, humidity, vibration, and altitude. Trusted by industries including electronics, transportation, aerospace, and more, CSZ chambers ensure the safety and reliability of everyday products consumers rely on. Founded in 1940, CSZ has grown from a supplier of industrial freezers to a trailblazing brand of state-of-the-art environmental simulation technology, earning a reputation for enduring quality and reliability. In February 2019, CSZ joined the Weiss Technik North America family, combining strengths and reinforcing the brand's commitment to providing the highest quality environmental testing solutions. CSZ test chambers continue to shape the future of environmental simulation, providing innovative solutions for validating the safety, reliability, and efficacy of devices across nearly every industry. Throughout the journey to becoming a global leader in environmental testing solutions, the philosophy that the customer comes first has been the brands guiding principle. Through dedication to customer service, CSZ products have gained the trust of leading manufacturers across industries including automotive, electronics, aerospace, defense, medical, energy, and many more.