The Psychological Apparatus category offers a comprehensive collection of laboratory-based psychological instruments and experimental devices designed to assess learning, perception, attention, memory, reaction time, motor skills, sensory processes, fatigue, coordination, and cognitive functioning across educational, research, and professional settings. Our collection includes standardised and research-oriented apparatus such as Human Maze Learning Apparatus, Mirror Drawing Apparatus, Reaction Time Apparatus, Memory Drum, Colour Preference Apparatus, Depth Perception Apparatus, Steadiness Tester, Dexterity Boards, McDougall Disc, Perimeter Table Model, Habit Interference Board, Division of Attention Board, Tachistoscope, Colour Mixer Apparatus, Ergograph, and various electronic and digital models for advanced experimentation. These psychological apparatus are widely used in psychology laboratories, educational institutions, behavioural science research, counselling and training centres, academic projects, and professional psychological assessment, making this section a trusted resource for practical experimentation, psychological research, and hands-on learning experiences.