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All smoke detectors must be replaced no less frequently than 10 years. Heat sensors must also be changed, and some of them tested to see if they were working when removed from service.
Local code requirements determine how many heat sensors must be changed according to the results of the testing.
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Where can I buy wired driveway alarms?
Wired driveway alarms are widely available online at eaby. They are also carried by Sears and general hardware stores. www.homesecurity.com offers a wide range of driveway alarms as well.
Why do some smoke alarms beep when the power goes out-?
Some smoke alarms beep when the power goes out because they are hardwired to the power system and resetting. Not all smoke alarms are hard wired to the building's electrical system.
Is there a good Bed-wetting Alarms Comparison and Review?
The related link below is the most detailed and comprehensive site comparing both wireless and wired bedwetting alarms.
What happen if you change the original stereo from your Renault does it happen something to the alarm?
so long as its wired up properly and you dont bi-pass the alarms wires by accident the alarm should be fine and you should have a new stereo
Do all smoke alarms in a building have to be wired together?
I would think so because when one goes off everyone else should know there is a fire. It depends upon local codes and how the building is being used. For example, many state fire codes allow individually placed, battery-operated smoke alarms that need not be wired to anything, let alone connected together, for one and two-family dwellings.
Why do hard wired smoke detector activate alarm?
A smoke detector is designed to activate an alarm if smoke is detected. It does not matter if the unit is hard wired or battery operated. This is its job. In a hard wired system you can interconnect the alarms if a three wire is used between units. The black and white wires are used to power the unit and the third red wire can be inter connected to the alarms in each one of the other detectors in the same system. Hence if one smoke detector alarm trips, the horn alarms in all of the other detectors will go in to an alarm state. This is a very good safety factor and units should be wired this way. For example if a detector trips in the basement at night and there are closed doors between floors you might not hear the alarm in your upstairs bedroom. If all of the alarms sound upstairs and down no matter which unit tripped, you are bound to hear them, no matter what part of the house you are in.
What fuse controls warning sounds?
You can't drive the car with that fuse removed so sorry. It is wired that way so you can't disable the seat belt and other alarms
On a WC macerator installation the electrical supply to the unit should be wired from?
On a WC macerator installation the electrical supply to the unit should be wired from a switch.
Are there any drawbacks to having a wireless burglar alarm, or are they just as safe as a wired one?
Wireless burglar alarms are just as safe as wired one. If inproperly placed you can miss spots which wont be protected, but this can be corrected with proper placement. They also run on batteries which you must remember to replace. They are not as relaible as wired ones. One of the issues is tht the wireless connection could drop leaving your premises not protected.
What are the benefits of wireless alarms?
Many folks out there still provide "wired" services for alarms, but in trying to keep up with trending and more affordable technology, many of these service providers will make the move to wireless. According to HubPages, there are significant advantages to a wireless alarm system: cost, convenience, security, coverage, and most importantly expandability.
You changed your radio now your srs airbag light goes on and off?
You probably have the system wired improperly.
How 555 timer repeating?
A 555 timer is a chip that can be wired to different ways many different ways the main being a pulse generator it keeps repeating because it is pulsing the current on and off. this is used in burglar alarms ect
