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United Scientific™ Telegraph Key 
Can be used in a variety of electricity demonstrations including Morse Code.
Supplier: United Scientific™ TGKY01
Description
- Telegraph key, mounted on a solid plastic base.
- Measures 11 x 5 cm, with two screw-type connecting terminals.
Specifications
| Electricity Education | |
| 5 to 12 | |
| Telegraph Key | |
| 1 Lab Group |
Warning: Cancer and reproductive harm