Japan Fire Safety

Interesting to see that the live action Dragonball is being used to promote fire and smoke detectors by the Tokyo Fire Department.
By next April 1st, all households in Japan are required by law to install fire and smoke detectors. There have even been campaigns where the fire department have been handing out for free at the local shotengai.
We don't have any yet but will fit them in before April. Do you have fire and smoke detectors installed at home?

The Japanese word for fire and smoke detectors is Kasai Keihou Ki [火災警報器[かさいけいほうき]].