You should use the test button each month to see if the alarm and batteries are still working.
你应该每月使用测试按钮,看看闹钟和电池是否还在运转。
An option to test the connection using the test connection button.
使用Test Connection按钮测试连接的选项。
Select the test the connection button to test your connection.
选择Test the connection按钮测试连接。
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