Exhibit showing the use of a photoelectric cell

Exhibit showing the use of a photoelectric cell for a burgler alarm.

Details

Category:
Childrens Gallery
Object Number:
1933-638
type:
exhibit

Parts

Burglar alarm

Burglar alarm

Burglar alarm.

Object Number:
1933-638 Pt1
type:
alarm
Dummy safe front and door for use in burgler alarm display

Dummy safe front and door for use in burgler alarm display

Dummy safe front and door for use in burgler alarm display.

Object Number:
1933-638 Pt2
type:
safe front