Since inception, 1800doorbell.com has carried a large offering of entrance and motion alerts, as well as exit alarms. The most common uses of these types of alarms are for security purposes. Most users want to be notified when someone, or something, enters or passes through a door, or a certain monitored zone. I have written many other blog posts about the use of entrance alerts as a customer service device for your retail store, to alert you as soon as a customer has arrived. I have also written in the past about using these entrance alerts to secure your facility against unauthorized entrances into your facility or office. Today I want to talk about some obvious and very practical uses of entrance alerts around the home.
I needed something:
- with a long range
- loud chime that could be easily heard
- something that I could distribute throughout my home, in case I wasn’t near the door when it opened
What I decided to do was build a kit to be used for the purpose of protecting my family and guests from wandering out into the pool. This kit, is known as the DA 2500 Door Alert, and consists of one window door contact, and one plug-in receiver. The range from the transmitter to the receiver is up to 2500 feet. This may sound like overkill, but keep in mind that 2500 feet is the published range by the manufacturer. We all know that in reality, the published marketing range never really works in real life. This is because environmental factors will interfere with the wireless signal transmission. In homes, materials like brick, concrete, stucco, and other materials will dramatically reduce the transmission range on most products. Essentially, this is the same reason that a wireless router in your home may not give you the range that the box says it will.