根据后句Change the batteries at least once a year.You should use the test button each month to see if the alarm and batteries are still working.每年至少更换一次电池,每月使用测试按钮查看报警器和电池是否仍在工作,可知结合选项,应说烟雾报警器只有在正常工作时才有用。所以"C. ...
Many models of smoke detectors have adjustable sensitivity settings. Some have a “hush” button will turn off the alarm andleave it off for 10 or 20 minutes. If your smoke alarm doesn’t have these feature, it might be time to upgrade. Change the batteries of your smoke detector Weak ba...
A dying battery or unreliable power supply is the most common cause of false alarms on the FireX smoke alarm. Replace the battery in the smoke alarm at least once a year to ensure proper operation. Only use new9-volt batteriesas replacements. Do not use rechargeable batteries. If the unit ...
The button test ensures that the batteries are working. However, it doesn't tell you whether the detector is operating properly. To find out, put two or three lighted matches together (the wood kitchen type is best) and then blow out the flame, holding the matches so th...
If your car alarm keeps going off even though you pressed the "unlock" button, check to see if the door locks respond; if they don't, you may need to replace your key's batteries. In most systems, the brain will flash the lights and tap the horn when you arm and disarm your car...
6. Install the New Smoke Alarm Align the alarm with the notches on the mounting plate, push the alarm in as far as it will go and rotate it clockwise to lock it into place. You can now turn the power back on. A Word About Batteries ...
Change your smoke detector batteries at least once a year. If your smoke detector gives off a low battery signal (chirping sounds), replace batteries as soon as possible. Clean your smoke detectors and its surrounding areas – use a duster or vacuum extension to suck up excess dust and cobwe...
When there's a suspect in a crime and the evidence includes a handwritten note, investigators may call in handwriting experts to see if there's a match. In some cases, it might be the one piece of evidence that gets a suspect charged and eventually convicted. But what if it's a false...
From fire extinguishers to smoke alarms, learn some basic preventative measures to avoid a house fire and keep your family safe.
Smart thermostats, smoke alarms and security cameras can track your habits to help you save on energy bills, let you remotely see camera views of your home, send you a warning when something isn't right and make it easy to contact emergency services. You can even buy small tags to put ...