The DHT® DHTH series Alternating Temperature & Humidity Test Chamber, developed at the European R&D Center, is designed for research institutions, laboratories, and universities. It combines a compact structure with exceptional performance. The device precisely controls temperature and humidity, providing a stable high/low temperature alternating humidity environment to assess the reliability and performance of products under extreme climate conditions. It is widely used in reliability testing of products in high/low temperature alternating humidity environments, ensuring their stable performance in real-world applications.