The SENSOR TECHNIK PRESSURE TRANSMITTER STW S04 0..200mBar is a pressure transmitter used in vacuum systems. It has a pressure range of 0 to 200mBar or around 150 Torr and is designed to provide accurate and reliable pressure measurements. The brand and model of the product are both SENSOR TECHNIK PRESSURE TRANSMITTER STW S04 

This sensor was used in CO2 lasers.