Incorporating a motion sensor alarm into your life grants you more safety for you and those nearest to you. All things considered you may like more than one of these nifty little devices. They can be used to inform you of visitors as well as to detect intruders, according to your settings. Many trusted companies such as GE with their many choices in motion alarms, Radio Shack or SecurityMan Wireless, available at K-mart, sell these alarms directly to the consumer. Prices can be as low as $15.95 or even as low as $9.95 for a sensor alarm for the front door of your home or business. Motion alarms will most often be wireless and use batteries such as AA, AAA or 9-Volt to run.

Motion alarms are most popular for entrance doors. They can usually be switched to greet visitors or customers to an alarm to warn you of an intrusion or unexpected guest with the flick of a switch or button. Elaborate models may cost $39 or more, but basically are not all that expensive considering the value you will receive in security and protection. Sensor alarms have a functional range that can vary from one alarm to the next. Some of these alarms have a range of a mere 20 feet while others have ranges of as much as 40 feet. There is also a temperature range that limits some of the devices in very cold weather, so you will have to mount some of the models inside, or, nearly inside, if you have extremely cold weather conditions where you want to install one of the units.

Motion detecting alarm systems can include control centers that are located a distance of several feet from the actual motion detector itself. One of these is the GE 45129 Choice-Alert Wireless Control Center which works together with the GE 45132 Wireless Motion Sensor. The sensor unit can be used indoors as well as outdoors as long as you stay within forty feet of the control unit. The sensor unit is weather resistant. This system works well if you want to put a sensor unit in several areas of your home or maybe even in a small place of business. A center like this could allow you to add as many as 16 sensors. This will cost around $27 for one of each unit, referring to one control center and one sensor. Additional sensors are about $9.95 per unit.

Another option in motion detection alerts is to use lights together with your motion detecting security device. The sensors for this type of device emit infrared signals that bounce from the objects around them, if they detect a disturbance in the regular pattern they signal the lights to come on. These flood lights are quite good at scaring off intruders as well as useful for you in the night for seeing your way around your own property. You can program these to your own specifications. Motion sensor lights can be found for about $13.97 to $23.97 from various merchants such as Home Depot or Amazon.com. Visit motion sensor alarm system or motion detector with alarm for further information.