Weather station with 5 sensors (IP3)

All completely working. All 5 sensors can be read from the base station, and the base station reports its own readings as well. 3 of the external sensors report temperature and humidity while the other two are temperature only. Base station uses 3*AA. T&H sensors 2*AA, T only sensors 2*AAA. Included is the instruction manual. Base station has radio clock as well. System is about 15 years old, though the sensors are various ages. It's a bit a faff when the batteries go flat in a sensor as it needs to be re-paired and that is NOT easy. Range on the sensors about 50m.