What is the difference between the micro door/window sensors and the standard sensors?
The standard sensors and micro sensors both detect when any protected door or window is opened. The standard sensors are about three inches long and contain a standard AAA battery that needs to be replaced about once per year. Your system will notify you anytime a battery needs to be replaced. The micro sensors are much smaller and are about one inch long. The micro sensors also have a smaller battery similar to that found in a watch that will last much longer than the standard AAA battery. Typically, the battery in the micro sensor will need to be replaced about every 3-5 years depending on how frequently the door or window is opened. The micro sensors are more advanced and more expensive than the standard contacts. Normally, we charge a $195 upgrade fee to get the smaller micro sensors. By placing your order online, we automatically upgrade you to our smaller micro sensors for free. If you have questions, you can reach a representative at 1-877-230-1739, Option 1.