【Core Gas Law Demonstration】：This apparatus demonstrates the pressure-volume relationship of confined gas under isothermal conditions, and verifies temperature changes during rapid gas compression/decompression—ideal for teaching Boyle’s Law and energy conversion principles. 【Precision Measurement & Sealed Design】：The graduated cylinder (29mm inner diameter) connects to a pressure gauge via a sealed tube, with a control valve for airtight operation. The pressure gauge has a range of -10 to 30 N/cm² (2N/cm² division) and a 60mm dial for clear readings. 【Integrated Temperature Monitoring System】：A high-precision temperature sensor is built into the cylinder, enabling real-time temperature readout via an external digital display. This supports experiments on energy and internal energy conversion in lightweight gas systems. 【Compact & Portable Lab Equipment】：With overall dimensions of 160×120×200mm, this demonstrator is compact enough for classroom and lab use. Its sturdy construction ensures durability for repeated experiments and demonstrations. 【STEM Education Essential】：Perfect for high school and college physics classes, science fairs, and home labs, it provides a visual, hands-on way to explore gas laws and thermodynamics, making complex concepts accessible to students.