A system and a method for presence detection and notification. The system includes a a first unit including a first sensor and a first visual alert, and a second unit including a second sensor and a second visual alert. The first unit is constructed to send a signal to the second unit to trigger the second visual alert, when the first sensor detects a presence. The second unit is constructed to send a signal to the first unit to trigger the first visual alert, when the second sensor detects a presence. The first and second visual alerts are constructed to be triggered independently of one another.