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This circuit plays a musical tone when both magnetic switches separate. Cna be used on doors, or as an alarm. Makes a great doorbell!
Technical specifications:
- Power supply: 2 x 1.5V AA batteries (not incl.)
- Consumption: 65mA. max. (working), 3mA. (stand by)
- Detection: magnatic switch or other switch (NC)
- Dimensions: 1.47 x 1.10 inches
Kit requires assembly by soldering!
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