_GF_Office.js

let proxy = require('openhab-proxy-pattern');

proxy.bind("GF_Office_Co2", "Netatmo_Indoor_Co2")
    .update(function(value) {
        const ppm = parseInt(value);

        return (typeof value == 'string') ? `${ppm} ppm` : undefined;
    });

proxy.bind("GF_Office_Humidity", "Netatmo_Indoor_Humidity")
    .update(function(value) {
        const v = parseInt(value);

        return (typeof value == 'string') ? `${v} %` : undefined;
    });

proxy.bind("GF_Office_Temperature", "Netatmo_Indoor_Temperature")
    .update(function(value) {
        const v = parseInt(value);

        return (typeof value == 'string') ? `${v} °C` : undefined;
    });