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Again, it can vary significantly depending on the sensor model that is being used.Joseph F. But please be aware that some sensors will offer longer battery lifespans than the usual 3 to 5 year period, while others will require more frequent battery replacements. Alkaline batteries will generally provide a shorter useful life.
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Typically, alarm system sensors can go three (3) to five (5) years without battery replacements when lithium batteries are used. Lithium batteries will provide the longest lifespan. When selecting batteries for use with alarm sensors, we strongly advise choosing lithium batteries, as opposed to alkaline batteries.
This information may also be listed on the product packaging or inside of the product's user guide or starter guide. You can often find the expected battery life for a sensor in the device's installation manual. That is why many users will make sure to buy sensors with longer battery lifespans to avoid the need for frequent replacements. A sensor with a short battery life will require more battery replacements, which can add up over time. If RF supervision is disabled, then the condition won't appear.īattery life is an important specification for a wireless sensor. Please note that an RF supervision condition can only appear if RF supervision is enabled for the zone associated with the wireless sensor. This trouble condition will appear after the sensor has failed to check-in with the system after a certain period of time. When that happens, the system will eventually display a loss of RF supervision trouble condition to let the user know that the sensor is no longer being detected. Failure to replace the battery will soon result in the sensor no longer communicating with the system. This trouble condition will appear on the panel to let the user know that it's time for a replacement. Once the voltage for a battery drops below a certain threshold, the sensor will usually report a low battery condition. Without a charged battery, a wireless sensor will no longer be able to communicate with the panel, and it will no longer work properly.Ī battery will lose its charge with continued use. This also applies to sensors that rely on a microphone for listening, such as glass break sensors. This is typically the case for sensors that commonly feature LED lights, such as motion sensors. Some sensors may also use this power for general operation. This power is necessary for communicating with the alarm panel. Today, CR123A batteries represent one of the most commonly used battery types in security system equipment.Įvery wireless alarm sensor will rely on one or more batteries for power. But the CR123A size found a new use in the security industry, as many alarm manufacturers began using the size to power wireless sensors. These are cylindrical batteries that are slightly shorter and fatter than the more common AA size. This is because these batteries are frequently known for their wide-spread use in photography equipment. The CR123A battery size is known as a "camera battery". On average, a CR123A lithium battery will offer a lifespan of three (3) to five (5) years.
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Some sensors will allow for a significantly longer battery life than others. The length of time a CR123A lithium battery will last in an alarm sensor varies depending on the sensor that is being used.