Category
📺
TVTranscript
00:00 Even if it's just a movement, it's like a heart beat.
00:05 - A heart beat. - Oh, it can?
00:06 Yes. That's why it's called motion sensor.
00:09 So how deep can it go?
00:11 If it's an earthquake, how deep can it go?
00:14 Actually, this is our own device.