Sounding alarms don’t work for the deaf and hard of hearing. Alternative ways to know someone is at the door are needed.
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Door Vibration Sensor
Wireless Door Knock Sensor – Doorknob Knocking Alert – Model CA-DXH
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Serene Door Knock Alert
Ideal for condo, apartment, commercial or workplace
Serene Door Knock Sensor
Wireless doorbell alert for hearing impaired
Bellman & Symfon
Krown Door Signaler
App or flashing strobe lights
HomeAware Blink and Doorbell
The HomeAware Blink and Doorbell combines the HomeAware Blink, which gives your system a color-coded light notification wherever you need it, and a doorbell signaler. Compactly designed for areas where you do not have much room. With a 500-foot range, the removable notification disk keeps you connected to your system when you are out in the garage, down in the basement, or even outside.Connect to a HomeAware main unit as a system accessory.
Sonic Alert HomeAware
Flashing lights
Motion Sensors and Video Camera
Serene Door Knock Sensor
Sound Recognition App
Many apps with sound recognition features can capture door-knock or doorbell sounds.