I've lost my manual. How do you reset the receiver to receive information from the transmitter?

Can email at [email protected] and I will explain in detail how to rest it
Allan the key steps are, remove batteries from inside and outside units, plug in inside unit and get flashing IO. With swtich in normal position put batteries in outside unit, then switch it to set ID. Inside unit should stop flashing and show an ID in wind driection pane. Push set on back on inside unit and you should see most everything, but outside data takes a few minutes to show. Set switch to normal again on outside unit, then replace batteries on inside unit too and you are set. Phone for this unit is 1-800-387-8520, no web site for Thermor Ltd. Web site for manual http://www.thermor-ins.com/manuals/BW953_BW_IB_ENG.pdf

Where is the outside temperature sensor located?

Outside lol