I am currently selecting an integrated display type of the PF3W series. Can the PF3W7 series only pr?

Yes, that is right. In cases where a product with both an analog output and a temperature sensor is chosen, OUT2 will be the analog output. Either a flow rate analog output or a temperature analog output must be chosen. If analog outputs for both flow rate and temperature are needed simultaneously, please use another, separate type PF3W5 or PF3W3 series product.