This wireless driveway motion sensor detects humans and vehicles up to 30' away, but ignores animals so there's no false alarms. PLUS it adds a wireless intercom that allows you to speak to the person at the sensor. Easy to install - sets up in minutes - and sends a signal to a receiver up to 1000' away which in turn sounds an alarm. Waterproof sensor assembly and weather shield. Sensor operates on 4 AA batteries (not included) for up to 2 years. Small size - sensor and receiver each measure less than 4" x 3" x 2".
