, Japan's second-largest home security firm, put a service plan on the market in 2004 with a lower monthly fee to increase contracts. The monthly bill for a condominium with three rooms plus a dining room and kitchen is 4,200 yen. The installation cost is 33,600 yen and a 20,000 yen deposit is required.

"For easy subscription, we have narrowed down functions," said Yasuko Sato, 41, an official with the company's home market business division.