| Following door and window alarms, motion detectors | | | | are a common choice for many applications, they are |
| are one of the most important security features in | | | | not typically used for home security because of their |
| your home. Both indoors and out, a motion detector | | | | cost. |
| will alert you to anyone who is creeping around or | | | | Shock sensors work not by detecting the movement |
| inside your home. Many people with pets are leery of | | | | of people, but of the air. Known as glass break |
| indoor motion detectors, believing that the pets will | | | | sensors, these detect the shock wave created as a |
| set off the alarms. The good news is that today's | | | | window is broken. These are often installed along |
| motion detectors are designed to be pet friendly; | | | | with a standard sensor near windows or glass doors. |
| you won't be waking up to accidentally triggered | | | | Many home intruders attempt to enter through a |
| motion detectors anymore. | | | | window, making these areas of the home in particular |
| Today's motion detectors are high-tech, affordable, | | | | need of protection using motion sensors and other |
| and effective. These devices have become more | | | | security devices. |
| dependable as the technologies behind them have | | | | While often placed near potential entry points, in |
| advanced. There is a wide range of motion detector | | | | truth, these sensors can be placed anywhere in the |
| devices available at every price level. Here are a few | | | | home. Many families also choose to place motion |
| types of motion detectors that you can choose for | | | | detector alarms near the bedrooms of elderly |
| your home: | | | | parents or young children, to be notified if they try |
| Infrared sensors, also known as PIR sensors, detect | | | | to leave the room at night. Some emit a very loud |
| radiating heat in the vicinity. These inexpensive, | | | | noise, intending to scare away whoever has tripped |
| reliable detectors are a standard choice for many | | | | the alarm, while others emit a quieter noise intending |
| home security systems. Microwave sensors emit | | | | to alert family members to the situation. |
| microwave energy. These can penetrate walls, | | | | Motion detectors are also a useful security device for |
| detecting motion even in other rooms. Quite useful | | | | your shed, RV, or other outdoor locations to scare |
| for home applications, these sensors are also seen in | | | | away potential burglars. Of course, there are also |
| businesses, especially in automatic doors. Dual | | | | motion detectors with a bright light designed for |
| sensors, which combine both infrared and microwave | | | | outdoor use. These are a great option for scaring |
| technology, have the ability to distinguish between | | | | away potential intruders before they attempt to |
| the movement of a person and that of a family pet. | | | | enter your home. |
| Ultrasonic motion detectors can be designed to | | | | Motion sensors are a crucial part of a comprehensive |
| detect motions either by detecting sound waves or | | | | home security system. If an intruder should ever |
| emitting a high frequency sound. These are very | | | | make it into your home, it is critical to be alerted to |
| sensitive, which can also make them more expensive | | | | the movement as soon as possible. Thus, indoor |
| than other types of motion detectors. Although they | | | | motion sensors play a vital role in home security. |