To Set Sensors 1. Push back the red latch on the base station and open the lid 2.Pop out each sensor by pushing down from above 3. Unwind the antennae from around each sensor and straighten. 4. Remave a tube from inside the base station cover and slide it over the antenna until it snaps onto the sensor 5.Slide each sensor's switch to the "ON" position 4. Place each of the sensors in a hiding place anywhere up to 75 feet from the rain unit.