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SL-40 Battery Powered Entrance Alert

SL-40 Entrance Alert Unit with Passive Infrared Sensor Model SL-40

Manufacturer: Rodann Electronics
Availability: In Stock
5 Star Rating
Condition: New
SL-40
Battery Powered Entrance Alert
$39.98

A Reliable Entrance Alert that Installs in Minutes!

The product is simple in nature.  Simply mount it above the area you want to monitor, like an entrance or a doorway.  When a visitor passes through the monitored zone, the passive-infrared sensor is triggered.  When this happens, a chime sound eminates from the sensor.  With an adjustable volume control, you can adjust the sound to the level necessary.

The product is ideal for mid-sized offices, shops and stores measuring up to 2,500-3,000 square feet. 

If you want the chime to sound at a remote location, please see the Rodann Wireless DA-50L-A.

The SL-40 is an all-in-one motion detecting unit. When its infrared sensor detects motion, a gentle alarm is triggered. Because it uses infrared technology, the SL-40 is resistant to false alarms – no need to worry about sunlight or reflections setting it off. It will also work when the door is open or closed, making this a reliable product that meets a variety of demands.

  • SL-40 uses a passive-infrared sensor that is triggered with a combination of heat and movement.  This helps eliminate false alarms caused by shadows, leaves, etc.
  • The product emits a chime sound when triggered
  • A volume control allows you to adjust the volume to your specifications
  • Mounting the product is easy, using the supplied mounting bracket
  • Angle the product to monitor your desired area
  • No wiring required
  • Powered by a 9-volt battery. Under normal conditions, battery should last 18-24 months prior to replacement.
  • Product is made in America
  • One year manufacturer's warranty

Customer Reviews

Product Reviewed: Battery Powered Entrance Alert
score average: 5 out of 5 , 3 review(s).
5 Star Rating
Barb
(Aurora, Colorado)
Our doorbell works great, it is so comforting to know that now I can tell if someone enters our office. The installation was easy and the versatility of the unit allows us to place the unit at different angles to catch the door/people movements. We waited too long to purchase, hope you don't do the same. Customer service was great and the delivery was prompt. Great company to work with.
5 Star Rating
Frank
(San Luis Obispo)
Works like a charm, exactly what I expected it to be by the description - love it! I can hear the bell from the back parking lot of our 3200 sq ft building (bell is on front door).
4 Star Rating
Leslie
(San Francisco)
we are in a small Showroom with a door that is always open, but staff is often in the office unable to see the entrance. This is the perfect solution. Only one drawback, the instructions are nut sufficient to change the "ding dong" to a "ding" as they are written.

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