Steren K-800 Manual De Instrucciones página 21

27.- AND gate
Place a magnet close to the switch 13, then close the switch 15 at the
same time, then the lamp 18 will light up.
28.- OR gate
Place a magnet close to the switch 13 or close to the switch 15, the
lamp 18 will light up. If you need to turn the lamp 18 off, remove the
switch 13 and turn the switch 15 off.
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