House is 80 years old. 2 black wires in switch box and no ground. Trying to replace single pole light switch with motion sensor light switch that works with incandescent,LED, and florecent bulbs. Currently using LED bulbs.
Problem: The GE motion sensor switch has 4 wires. Red (load), black (hot), white (neutral)' and green ground. The instructions give no information on how to connect the four wires on the sensor to the 2 in the light switch box.