LZ1902 9V DC battery smoke detector alarm

How to test the Smoke Alarm:
1) It is important to test this unit monthly to make sure it is working properly. Don’t use fire to test your alarms, press the test button on the cover of the unit until the alarm sounds. If it does not alarm, make sure that the unit is receiving power and test it again. If it still does not alarm, check your battery or replace it immediately.
2) The signal flashes once every 30 seconds and while it alarms the signal will flash once 0.5 per second.
3) If the alarm makes low “chirp” sounds about every 30 seconds, it tells you to exchange your battery.
4) Little smoke will not cause alarms, so misinformation occurs only when you blow smoke to the alarms directly or you forget to turn on your ventilated facility while you are cooking.
5) Sometimes when you smoke the unit will alarm, so you can just ventilate air to it to stop alarming.

Product Description

•1 year battery life time
•DC 9V battery operated
•Photoelectric chamber of early detection from all   directions.
•Loud>85db(A)alarm signal(3M)
•Flash alarm indicator(red LED)
•Test/Hush associative button
•Low Battery signal
•Replaceable battery 1Y/3Y/5Y
• N.W.: ≈ 125g（include battery）
• Dimensions: Ф100*37mm

Product Parameter

Where fit to install Fire Alarm ？

1. At first, you need install them in your bedroom and route way, and should install one item in every bedroom at least.

2. Stairway is important for you to rush out when fires occur, so there must install smoke detectors.

3. You at least require one smoke alarm on every floor,including finished attics and basements.

4. Install one alarm beside every electric facility.

5. Install Smoke Alarms in the middle of ceiling,because smog,Heat and flashes always lift to the top of rooms.

6. If some reasons cause you can’t install them in the middle of ceiling,you need to install them at least 10cm away from the wall.

7. If you like to install them on the wall, they should be installed 10-30.5cm away under the ceiling. Diagram 1.

8. You need install more than one alarm when the length of your hall exceeds 9m.

9. In an ablique roof room,install the alarm 0.9m away from the top.Diagram 2.

10. How to install smoke alarms in a removable house.The removable house is short of heat isolation, so you’d better install the alarm 10-30.5cm away from the ceiling.for safety you need install another one near your bedroom, too.