VWR* Visual Scientifics Photogate Sensor, Four Modes: Gate, Pulse, Pendulum, Frequency, also Works with VISUAL SCIENTIFICS and numerous physical science systems, This kit contains: 2 Photogates, 2Connecting wires, Main photogate hub and control, Wall charger
Boyleft s Law Apparatus, To demonstrate the relationship between pressure and volume of gas. Consists of a 29 mm diameter graduated cylinder with a piston and a screw valve, 60mm manometer scale is from -1000 to 3000 hPa with 50