Challenge Co., Ltd.

Products Handled By Challenge Co., Ltd.

Seismometers

Seismographs

Earthquake Early Warning Transmitters

Challenge Co., Ltd.

670+ people viewing

Last viewed: 2 hours ago

First in Japan. Built-in sensor supports direct earthquakes. The high-performance built-in sensor will notify you of an earthqu...

Challenge Co., Ltd.

200+ people viewing

Last viewed: 16 hours ago

In the event of an emergency, simply press the remote control to easily notify the staff room. In the staff room, check the cla...

Challenge Co., Ltd.

160+ people viewing

Last viewed: 4 minutes ago

This system is also used in hospitals and is very popular as a means of reporting emergencies at night when there are fewer sta...