If you have a question that is not listed above, please submit your enquiry here.
 
1.
How long will the batteries last?
One set of fresh alkaline batteries will normally last for at least 1 year.
2.
Do I need to reset the date & time after installing the batteries?
Yes, you will need to reset the date & time after changing the batteries.
3.
How do I set up the DoorGuard?
Turn on the unit by pressing the POWER button. Hold the POWER button for 2 seconds until the set up menu appears. Select the American date format MM/DD/YY or the European date format DD/MM/YY. Press the CAMERA button to select. Hold the POWER button for 2 seconds to save the setting and bring up the next menu. Press the CAMERA button to select the item you wish to set. Press the PLAYBACK or DELETE button to change the value. When set up is completed, hold the POWER button for 2 seconds to until the set up menu disappears. The setting will be saved.
4.
How do I know when to change the batteries?
When the symbol appears on the screen, the battery power is weak. Replace all four batteries immediately.
5.
Can I change the chimes to different tones?
Yes, there are 5 different chimes available. You can choose chimes No. 1-5 in the set up menu:
No.1: Ding-Dong 1
No. 2: Ding-Dong 2
No. 3: Westminster
No. 4: London Bridge
No. 5: Frere Jacques
6.
How can I listen to the different chimes?
In the set up menu, the chosen chime will be played automatically after you have selected it.
7.
How many pictures can the DoorGuard store?
The internal memory of the DoorGuard can store up to 140 pictures.
8.
What would happen if the memory is full?
When the memory is full, the first picture taken will be deleted to make room for the latest one.
9.
Can I adjust the volume of the doorbell?
Yes, there is a side switch located on the right side of the unit. You can adjust the volume to low, mid or high level.
10.
I hear a strange “beep” sound when I press the “Push-to-Talk” button. Is this normal?
The beep sound is actually caused by the feedback sound between the indoor & outdoor units. Normally, there should be no feedback sound after the DoorGuard is installed on the door. However, the feedback sound may occur if your door is very thin or made of materials with low density. If the feedback sound occurs, it can be reduced by switching to a lower volume level.
11.
How do I know if the DoorGuard would fit on my door?
The DoorGuard is designed to mount on any type of door with a thickness range from 25 to 65mm (1 to 2.5 in) and with an opening with either 14mm (9/6 in) or 23mm (7/8in) diameter.
12.
If I have a glass door, can I use the DoorGuard?
The DoorGuard is designed for doors with minimum thickness of 25mm. Regular glass doors usually have thickness of less than 25mm, therefore the DoorGuard may not fit on a glass door.
13.
Will the installation of the DoorGuard cause any damage to the door?
No. The DoorGuard is mounted on the door through the opening of the optical door viewer. The mounting plate is also covered with protective film to avoid scratches on the door.
14.
What type of tools do I need to install the DoorGuard?
You need a coin to remove the optical door viewer and a screw driver to install the mounting plate.
15.
If my door is not fitted with an optical door viewer, can I use the DoorGuard?
You need to drill a hole on the door with at least 15 mm diameter in order to install the DoorGuard
16.
Can I take pictures when I am talking to a visitor?
Yes, press the CAMERA button any time when you want to take pictures of any visitors / their ID documents.
17.
The unit switched off when I got to the door, what should I do?
Simply press the POWER button or “Push-to-Talk” button to activate the unit and you can see the live view outside the door. You can communicate with the visitor by pressing the “Push-to-Talk” button.
18.
Where can I buy the DoorGuard?
Please contact your local distributor. If there is not yet a distributor in your country, please contact us.
19.
If our company is interested in distributing the DoorGuard, who should we contact?
Please fill out the contact us form. Our sales representative will contact you shortly.