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Replacing Batteries In Wireless Sensors
Wireless sensors may not have been used in your security system.
If your system has wireless sensors, each wireless sensor in your system has a 9-
volt or 3-volt battery. The system detects a low battery in any wireless sensor,
including smoke detectors, the optional personal emergency transmitter, and the
optional portable wireless Keypad. (A low battery in a portable wireless Keypad is
detected as soon as one of its keys is pressed, and the Keypad will display 00.)
Alkaline batteries provide a minimum of 1 year of operation, and in most units and
applications, provide 2 to 4 years of service. Actual battery life will depend on the
environment in which the sensor is used, the number of signals that the transmitter
in the sensor has had to send, and the specific type of sensor. Factors such as
humidity, high or low temperatures or large swings in temperature, may lead to the
reduction of battery life in an installation. If you have a low battery in a wireless
sensor, a low battery message is displayed on the Keypad.
In addition, a battery-operated smoke detector with a low battery also emits a single
"chirp" sound once every 20 to 30 seconds, identifying itself as the smoke detector
with the weak battery. If you do not replace a smoke detector's low battery, the
smoke detector may sound continuously, as if there were a fire alarm.
The low battery message comes on as a warning that battery replacement in indicated
sensor(s) is due within 30 days. In the meantime, the sensor(s) causing the low battery
indication is still fully operational.
Important: Use only batteries recommended by your installer as replacement.
Silencing Low Battery Warning Tones at the Keypad
The warning tones can be silenced by performing an OFF sequence (code plus OFF
key), but the low battery display remains on as a reminder that you have a low
battery condition in one or more of your sensors. When you replace the battery, the
sensor sends a "good battery" signal to the panel as soon as the sensor is activated
(opening/closing of door, window, etc.), causing the low battery display to turn off. If
the sensor is not activated, the display automatically clears within 1 hour.
Maintaining Your System
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