Door Knocker Sensor-Transmitter - CentralAlert™
Door Knocker Sensor-Transmitter - CentralAlert™
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Never miss another visitor or package delivery!
- Detects the vibration on door knocking.
- It can also connect to your existing doorbell, door chimes, or door intercom provided there is an external connection.
- Simple to install with adjustable sensitivity to avoid false alarms
- 2.5mm Jack for direct connection to your existing doorbell/door chime*
*With this method, electrical signal from your doorbell or door chime activates CA-DX
Specifications:
Wireless technology................................2.4GHz Smart code
Operating range......................................Up to 300ft.
Battery type............................................2 AA size alkaline batteries
Battery life..............................................Up to 10 months
Operating temperature..............................+10 to 40 degree C
Size.........................................................2.5" x3.8" x 1" (64x96x23mm)
CA-DX FAQ
Q: How does the CA-DX work with my existing doorbell/door chime or door intercom announcer?
A: The CA-DX can connect to your existing doorbell/door-chime, or door intercom via the 2.5mm jack provided there is a connection on your doorbell or intercom. It detects the activation voltage and sends a signal to trigger the CA-360 to alert you that someone is at the door.
Q: Where should I mount the CA-DX?
A: Use the provided double-sided tape to affix the CA-DX on or adjacent to your existing doorbell/ door-chime or intercom panel. Or, affix it to the back of the door for knocking detection.
Q: Can I connect the CA-DX directly to my existing doorbell/door chime?
A: Yes, provided your existing doorbell or door chime has such connecting terminals. Check your doorbell/chime user manual for details and instructions.
Q: How many CA-DX can I install with my CA-360?
A: You can have up to 4 CA-DX (comibantion with CA-DB).
Q: The CA-DX seems to be working and lights up when pressed, but why is my CA-360 not responding?
A: Most likely, your CA-DX is not connected with your CA-360 yet. Make sure that your CA-360 is paired with your CA-DX. Refer to your CA-360 for the pairing instructions. Another possibility is that your CA-DX is out of range, up to 200 ft away from your CA-360. You can fix this problem by simply bringing them closer together.
Q: If I have more than one CA-DX, how do I know which one is activated?
A: There is an easy way to assign a number to each of your CA-DX; the activated CA-DX number will be displayed on the CA-360. Please see your manual for more details.
Q: What type of battery is used in the CA-DX and how long will it last?
A: It uses non-rechargeable AA batteries and should last up to 10 months under normal circumstances. You can use the Test button to check your battery power. Please see the user manual for more details