Sound Grenade with Loud 120-db Alarm

By NinjaSpy
In Survival
Apr 4th
0 Comments
2306 Views

Sound Grenade

Meet the Sound Grenade: a compact tool with a 120dB siren that helps you out when in trouble. Once you pull the pin, the alarm goes off for 30 minutes unless you return the pin. The device works under water and operates in a 14F to 104F temperature range. You can get one of these for under $20.

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