indoor-outdoor thermometers
... that the outdoor parts of indoor-outdoor thermometers are used indoors by building service engineers by swinging them around?
... that the outdoor parts of <b id="mwB10"><a class="mw-redirect" href="./Indoor-outdoor_thermometer" id="mwB14" rel="mw:WikiLink" title="Indoor-outdoor thermometer">indoor-outdoor thermometers</a></b> are used indoors by building service engineers by swinging them around?