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The Serene Innovations Central Alert CA-DXH Hanging Door Knock Sensor is a helpful device in the home and on the go. This device slots right over a door knob or handle and detects vibrations on the outside that can be caused by knocking at the door. This device is part of the Central Alert series of products and is an excellent device to assist users who are hearing impaired as well as being helpful in the event of being in a hotel room or any other environment where there is no other real way to know if someone is at the door.

Product Specifications / Dimensions

Specifiction LabelSpecification Value
Dimensions 2.5 in. x 3.8 in. x 1 in.
Operating Frequency 2.4 GHz
Operating Range 210 ft
Batteries 2 AA alkaline batteries (not included)
Warranty One year limited warranty
Brand Serene Innovations
Product Type Signaler
Signaler Alert Type None built-in
Signaler Style Wireless
Lamp Plugin No
Built-In Transmitter Yes
Signaler Type Door

Additional Documentation on This Product

More Information

The Central Alert CA-DXH is a portable device that can be easily hung on a doorknob, making it an ideal solution for bedrooms or hotel rooms where privacy and security are paramount. The sensor operates on a frequency of 2.4GHz, ensuring a high level of performance and reliability. Once the sensor detects a knock, it transmits a wireless signal to alert the user. This feature makes it a perfect fit for those with hearing impairment or for environments where noise levels might make it difficult to hear a knock.

One of the standout features of the Serene Innovations Central Alert CA-DXH Hanging Door Knock Sensor is its discreet design. The entire device is designed to hang on the inside of the door, ensuring that no part of it is visible from the outside. This ensures security and minimizes the risk of tampering or damage.

This hanging sensor uses two AA batteries to power it and uses minimal power in order to make the batteries last as long as possible. The sensor also works with other Central Alert devices by sending the signal to a compatible Central Alert Receiver. The wireless sensor eliminates the hassle of wires and with the use of the receiver, the volume of the device is completely customizable from the receiver itself, eliminating the need to make adjustments on the device itself.

FAQ For Central Alert Notification System Hanging Door Knock Transmitter

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Central Alert Notification System Hanging Door Knock Transmitter Pictures:

Central Alert Notification System Hanging Door Knock Transmitter
Central Alert Notification System Hanging Door Knock Transmitter
Detects vibration through the door
Detects vibration through the door
Easily slots over knobs and handles
Easily slots over knobs and handles