So what would a sensor cost that checks body heat in the back seat, and if

[Lithos]

52. Why not just roll down the window and unlock the door?

But the technical issue is that it is impossible to check by a heat or pressure sensor. Heat is that the body is not the hottest thing there is - the car itself is hotter - that's the issue and cause of death. Pressure sensors don't work because you can leave a suit case in the back that has the weight. You can't really detect there is a kid back there.

I've thought the best way would be a smart baby car seat which can talk to the car via Bluetooth or something. Like a garage opener, you'd program it to a base station in the car which would trigger the horns to go - possibly allow unroll the windows or unlock the doors if the temperature got severe enough. If the car seat is out of the car (i.e., you got the baby), then it would be fine.

L-