What are the three blinking lights on the front of the unit?
Electro-Vibrawave technology sends vibrations through your wiring. The Green light blinks when the Ultrasonic sound is emitted. The red and green lights will blink intermittently. The Ultrasonic and Electro-Vibrawave technologies are used at random pulses to constantly startle the pests and prevent them from getting used to these sounds. The Yellow light represents the Ionic feature. The yellow light will be on all the time because the AT is constantly emitting negative ions.