Burglar alarm
Burglar alarm.
- Measurements:
-
Each item: 1020 mm x 445 mm x 425 mm,
- Object Number:
- 1933-638 Pt1
- type:
- alarm
- Image ©
- The Board of Trustees of the Science Museum
Exhibit showing the use of a photoelectric cell
Exhibit showing the use of a photoelectric cell for a burgler alarm.
Details
Parts
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
