Fujitsu Ltd. and a subsidiary on Friday will start marketing a household sentry robot that telephones residents in the event of a break-in.

The Maron-1 is equipped with a phone and camera, and can be guided by users via Internet-capable mobile phones, Fujitsu and PFU Ltd. said Thursday.

Users can remotely adjust the camera angle, take still photos and move the robot, which uses an infrared sensor to avoid obstacles. Owners can also use it to operate a range of household appliances.

When Maron-1 detects an intruder, it dials a preprogrammed phone number.

Users can download and view photos taken by the sentry on their mobile phones.

The robot can go forward and backward, spin and move over surfaces that vary up to 2.5 cm in height, they said.

It will retail for 298,000 yen. Fujitsu and PFU, a robot maker based in Unoke, Ishikawa Prefecture, expect to sell 10,000 units in two years.

The builder of a condominium in Oita Prefecture has already ordered robots for future residents, they said.

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