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MAINTAINING YOUR SYSTEM
Taking Care of Your
The components of your security system are designed to be as maintenance-free as possible.
System
However, to make sure that your system is in reliable working condition:
1. Test your system weekly.
2. Test your system after any alarm occurs (see TESTING THE SYSTEM) .
Replacing
Each wireless sensor in your system has a 9-volt or 3-volt battery. The system detects a low
Batteries in
battery in any wireless sensor, including smoke detectors, the optional personal emergency
Wireless Sensors
transmitter, and the optional portable wireless keypad. (A low battery in a portable wireless
keypad or keyfob is detected as soon as one of its keys is pressed, and the wired keypad will
display "00".)
Wireless sensors
may not have been
Alkaline batteries provide a minimum of 1 year of operation, and in most units and applications,
used in your
provide 2–4 years of service. 3-volt lithium batteries provide up to 4 or more years of operation.
security system
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 variations in temperature, may all
lead to the reduction of actual 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 approximately once every 20–30 seconds, identifying itself as the smoke detector with
the weak battery.
Note: The low battery message comes on as a warning that battery replacement in indicated
sensor(s) is due within 30 days. In the meantime, a sensor causing a low battery indication is
still fully operational.
Important: Use only batteries recommended by your installer as replacement.
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