To buy an Adinstruments Pneumotrace with Labchart software for respiratory rate measurement or to buy a new car?

Both available for around 10’000 USD? We found from Pluxbiosignals in Lisbon, Portugal the the inductive respiration sensor for 750 USD: There is also a cheaper respiratory belt available from Pluxbiosignals. But will the Swiss Federal Institute of Technology in Zurich accept this device? The inductive respiration sensor costs 750 USD. We found on Aliexpress …