Home Security Systems, ADT VS Life Shield

[RT]

I am looking into installing a security system in my home ADT is very expensive for the monthly monitoring fee and their devices are also pretty pricey but at least that's a one time fee. Anyone know anything about Life Shield? They're monitoring fee is $30 vs $43 (ADT) and they're devices are pretty cheap.. I would be paying $280 for 2 motion sensors and 13 window sensors, the keypad... vs ADT where im paying 270 for only 3 window sensors, only one motion sensor, and the Keypad.
The ADT price i would be paying is with 10% discount for USAA. Both companies also have apps for smartphones so you can control the systems from anywhere...

[SPLP]

ADT , u can negotiate the "monthly" fee , i pay yearly $259 net ( n.y.area) -- u can get a discount if pay yearly and then work it lower  -- also i always see senior discounts etc -- need to work on it -but once got it done easy next year

[RT]

I was leaning toward Life Shield bec cheaper but I want to really make sure im not sacrificing the quality.. Anyone know anything about LS?

[outsider]

Not everyone knows this but these days some alarm companies can provide a wireless cellular alarm connection, so that if you do not have a landline or if they snip the line it will still work.

[eliteflyer]

Any insight from forum members on best route to go for a security system/monitoring system on a rental unit in Brooklyn? We seem to have had an intruder recently in the middle of the night who fled as soon as he heard us call the police. Thank g-d no one  was hurt and nothing was taken.  Apt is wired with a camera already, but no dvr.

[churnbabychurn]

Short barreled 12 gauge should do the job.

I once used a small battery operated kit that sticks to doors and windows. Definitely makes some noise when opened but easily disabled...