Family Guardian Angel-VF1 Telephone Burglar Alarm

The family guardian angel - VF1 telephone anti-theft alarm consists of: alarm host and wired human pyroelectric infrared probe. When there is human activity in the set defense zone, the alarm will respond immediately and automatically and repeatedly dial the pre-set phone number, such as: mobile phone, pager, ordinary phone, etc., to make a remote alarm. When the owner answers the call, a specific "chi, chi..." alarm sound will be heard from the phone, indicating that there is human activity in the set defense zone. VF1 telephone anti-theft alarm is particularly suitable for anti-theft monitoring in unattended units, stores, homes and other places.

1. Features:

1. The unique ultra-low power consumption design of the VF1 telephone anti-theft alarm means that the alarm does not need any external power supply when it is working. As long as there is a telephone, it can realize remote alarm. This advantage greatly facilitates the use of consumers. Since there is no external power adapter, it not only reduces the cost and the probability of failure, but also completely eliminates some fire hazards caused by overheating of the power adapter.

2. The VF1 telephone anti-theft alarm adopts a camouflage design, which effectively confuses intruders and prevents intruders from discovering the alarm and destroying the anti-theft alarm to make the alarm function ineffective. The appearance of this alarm is exactly the same as that of an ordinary telephone, and when the alarm function is not needed, it is still a telephone that can be used to make and receive calls. The common alarms of this type on the market are usually designed as small desktops, and the words "multi-functional anti-theft alarm" are written on the shell, which is simply telling intruders.

3. The VF1 telephone anti-theft alarm is very easy to use. There is only one alarm switch on the alarm. When the owner leaves the defense zone and needs to set the anti-theft alarm, just turn the alarm switch to the "on" side and leave the defense zone within 30 seconds. If the owner returns to the defense zone, just turn the alarm switch to the "off" side within 15 seconds to cancel the anti-theft alarm.

4. The internal circuit of VF1 telephone anti-theft alarm is relatively simple, without any extra functions, and all functions are completed by hardware, so it works very reliably and has a very low failure rate.

2. Working Principle:

When the alarm is not needed, the alarm switch can be turned to the "off" side. At this time, the alarm is equivalent to an ordinary telephone, which can be used to make and receive calls. When leaving the defense zone and setting the anti-theft alarm, just turn the alarm switch to the "on" side, and the alarm will be officially started. First, the internal circuit will delay for 30 seconds, which is reserved for the owner to leave the defense zone. After 30 seconds, if the human body pyroelectric infrared probe detects that there is someone moving in the defense zone, it will delay for 15 seconds, which is reserved for the owner to turn off the alarm. If the alarm is not turned off after 15 seconds, the alarm will go off the hook and dial the pre-set alarm phone. It will be dialed four times in a row, with an interval of 5 seconds each time, and there will be a sound prompt. If the pre-set alarm phone has a caller ID function, the phone number of the defense zone will be displayed at this time. When the owner answers the call, a specific "chi, chi..." alarm tone will be heard from the phone, indicating that there is someone moving in the set defense zone.

3. Usage:

1. Fix the human body pyroelectric infrared probe on the wall. The fixing height should be about 2 meters. Pay attention to adjusting the angle of the probe and aim it at the area where the intruder must pass. Avoid direct sunlight. Then insert the probe plug into the telephone. Make sure it is inserted to the bottom. The connecting line between the probe and the telephone should be fixed secretly. Then insert the local telephone line plug into the telephone.

2. Turn the alarm switch of the alarm to the "off" side, and dial the phone number that needs to be reported, such as the owner's mobile phone or pager. When the mobile phone rings or the pager rings, the alarm phone number is preset. Then turn the alarm switch to the "on" position. If the person stays in the defense area for 60 seconds, the owner's mobile phone or pager will ring, simulating an intrusion call alarm. If you answer the call at this time, a specific "chi, chi..." alarm tone will be heard from the phone.

4. Notes:

The number of telephone extensions connected to the network at home should not exceed 3 (including this alarm phone). Before using this alarm, check whether the connection line is intact. You can test the alarm once a month to ensure accuracy.