Sonic Alert Extra Loud Doorbell System
This system is great for people wanting to create an extra loud wireless doorbell alert. Works with existing doorbells or as a complete, new doorbell system. The adjustable, extra loud remote siren ranges from a 78-85 dB low frequency sound to a high 113dB. The adjustable tone ranges from 200 - 2,000 Hertz. Siren can be placed any place in the house. Five year warranty.
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