DIY Temperature/Humidity Controller Kits

Self-assembly DIY kits for temperature and humidity controllers. Kit includes PCB, components, schematic, and instructions. Complexity ranges from basic (comparator-based controller) to advanced (MCU with display and programmable profiles). Filter by controller type, complexity, assembly time, and enclosure availability. Used in student education, hobbyist clubs, and as gift kits for assembling a working device — a great way to practice soldering, schematic reading, and tuning.