Smoke alarm to identify true and false

Smoke alarm is life and property of the line of defense, for many people, how to choose the safety qualified black cavendish, seems a little bit difficult.

Armoured WeiXin tell you: "two test three" :

1. "two test" is to verify the product id the verify qualified on the sign, if there is a fire control products should pay attention to check the product id symbol, can be in "China fire product information net", according to the product id symbol verification, the query.

2. The "three" is to see whether the smoke alarm above have used method, shelf life, such as factory name information. Also look at the packing no damaged, deformation, scratches, etc.