This high tech device creates an invisible infrared beam. When the beam is crossed a loud alarm or a pleasant chime sound will be emitted. The alarm can be used at night to scare off would-be intruders.
In the chime mode, retail stores and businesses can use it to announce customers are alert them when someone enters an area that is "off limits". You can choose to have the chime sound only one time (when a customer enters your store for example) or the chime can sound continuously until you turn it off (when a customer enters an area that is "off limits").
Distance can be sent to high or low. In the chime mode, volume can be set to low, medium, or high.

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