Entrance Alert by Rodann Electronics, the SL-40.

The Entry Alarm SL-40 by Rodann is super easy to install.  Simply mount this entrance alert over any open area you want to be alerted to when movement is detected.  The SL-40 Entry Alarm will chime at the location of the movement sensor. 

If you would the chime to sound at a remote location, please see the Rodann Wireless DA-50

The SL-40 passive infrared door announcer is a self-contained, battery operated, motion detector. From the detector comes a pleasant sounding chime every time a person enters its detection area. This stand alone unit was designed to detect infrared energy emitted by the human body when in motion, and its performance is unaffected by sunlight, car headlights, reflections, shadows, or colors. It will also operate with a door open or closed. Designed with state of the art electronic components to operate under the most demanding circumstances the SL-40 is ideal for monitoring small office and shop entrances.

• Powered by 9 volt battery
• Long battery life circuit design
• Fully automatic, no alignment required
• Ceiling, above door, or side mounting
• No wires, easy installation
• Welcomes with a pleasant sounding chime
• Prevents unannounced entry
• Helps control theft
• One year warranty
• Low cost