The document provides details about the EK-3030E Temperature Controller, including its functions, technical parameters, and company information. The controller can measure, display, and control temperature, connect to the internet for remote control and parameter setting, and has alarms for temperature overages and sensor failures. Its measuring range is -40°C to 99°C, controlling range is -40°C to 85°C, and accuracy is ±1°C or ±0.5 digits from -30°C to 50°C. The company headquarters is located in Xuzhou, China.