Wireless Intruder Alarms

Jose1

Afraid I'm not at all savvy on the topic of alarms and would appreciate some help!

I was strongly considering the option of a wireless intruder alarm system for my Mums 2 bed semi detached dormer (she's had an unwelcome visitor recently). But having read through some post on here I'm now having second thoughts.

My main concern is the ease in which these systems can be blocked by jammers. Is this true for all wireless systems or just some? It seems a pretty useless set up if the signal can be easilly blocked.

Thank you in advance for your post!

altor

Jose1 wrote: »

Afraid I'm not at all savvy on the topic of alarms and would appreciate some help!

I was strongly considering the option of a wireless intruder alarm system for my Mums 2 bed semi detached dormer (she's had an unwelcome visitor recently). But having read through some post on here I'm now having second thoughts.

My main concern is the ease in which these systems can be blocked by jammers. Is this true for all wireless systems or just some? It seems a pretty useless set up if the signal can be easilly blocked.

Thank you in advance for your post!

I am sure you are referring to GSM jammers which can block the GSM from communicating when the alarm activates more so than the wire free systems.

Jose1

Pardon my ignorance in such matters, but I was of the opinion that the signal from the intrusion (door or broken window entry) to the alarm box itself was blocked, therefore rendering the system useless and preventing the alarm to sound. I just assumed it was this wireless signal that was blocked by jammers!

Looks like I might have misunderstood what I was reading or did I?

altor

Jose1 wrote: »

Pardon my ignorance in such matters, but I was of the opinion that the signal from the intrusion (door or broken window entry) to the alarm box itself was blocked, therefore rendering the system useless and preventing the alarm to sound. I just assumed it was this wireless signal that was blocked by jammers!

Looks like I might have misunderstood what I was reading or did I?

Yes you have, if an intruder was to try jam a wirefree system then the system will activate. With a GSM blocker jamming the communication signal there is no indication of this.

Jose1

I've got it now! Many thanks for your reply.

altor

Jose1 wrote: »

I've got it now! Many thanks for your reply.

Your welcome, any other questions let us know.

Thunderbird2

Just incase your going the DIY route it would be best to stay away from alarms sold in the likes of B & Q .They can easily be blocked.

Jose1

Does any sim card work in these wireless 'text' type alarms? If so, do security features on the card need to be altered or will it just work straight from the pack?

Thanks!

altor

Jose1 wrote: »

Does any sim card work in these wireless 'text' type alarms? If so, do security features on the card need to be altered or will it just work straight from the pack?

Thanks!

O2, 087 and 085 are commonly used. With some GSMs the security code will need to be turned off for it to work. If you get the sim, register it on line so you have access to it to check credit and top it up with out having to take out the sim. Most GSMs that are made for the system will allow you remote access to the panel for setting, unsetting of the system aswell as monitoring the system. No need to do much with the sim only set up the system for it to work.

Jnealon

Jose1 wrote: »

Does any sim card work in these wireless 'text' type alarms? If so, do security features on the card need to be altered or will it just work straight from the pack?

Thanks!

Any sim will work, just remove the pin on the sim