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Quick overview of an emergency door release with local LED light indicator and sounder.
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Emergency Alarm Hacks for Android 📱🚨#emergency #androidhacks
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3 Alerts of the LockNow Safety App - Intruder Alert Lockdown, Soft Lockdown Other Emergencies
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Car emergency glass breaker tool test #cars #tools
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This Alarm System Is Must Have For Schools
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Sistema de Emergência Utilizando Bloco Set-Reset
