The SS sensors check in periodically and notify you when one doesn't respond. The batteries last at least a year to a year and a half so this is rarely even a thing. We've had our system for about 4 years I think without a single failed sensor, and I have about 40 devices total. They use low frequencies outside the range of anything else so interference is not an issue either. Just because it's wireless doesn't make it junk. Alarm systems are as basic as can be so it doesn't take a complex system to do the same job. Wired is fine if the house was built for it, but good luck running cables through door and window headers later. Their response center is crazy fast too. The couple of times we set it off by accident the phone was ringing before we got the alarm shut down. At 25 bucks a month and no contract, I'd recommend SS all day.
Plus as great as BI is, it won't call the cops for ya.
Simplisafe isn't junk because it's a wireless system. It's junk because of the way its designed.
The system is cheaply made. The keypads are basic and can only be powered by battery. The window/door contacts don't have a tamper switch. Someone can just remove the cover and battery without causing an alarm.
Only 1 option for a door/window sensor. That sensor is large and may not work on every door or window
All of the sensors appear to be peel and stick without having the option to screw them into the door or wall. This could cause false alarms in the future. **EDIT** Looks like some of them come with screws.
As you stated earlier, the battery life on the sensors only last about a year or two. Honeywell, GE, DSC 2GIG etc sensors have a battery life of anywhere from 4 to 7 years.
The system lacks the option for Dual tech motion detectors. Dual tech motion detectors are more reliable and less prone to false alarms than standard PIRs. They also only offer pet immunity motion detectors up to 50lbs. Honeywell offers up to 100lb of pet immunity.
The selection of intrusion sensors are very limited.
The selection of fire sensors are limited.
The system does not offer 135 degree heat detectors for kitchens, garages, utility rooms, etc. Also doesn't offer 194 degree heat detectors for attics etc. Smoke detectors should not be placed in those areas.
The biggest gimmick is how Simplisafe advertises the monitoring to be contract free and you can cancel at anytime. While that may be true, the system is proprietary to Simplisafe. If you're unhappy with their service, you're out of luck. Sure you can cancel, however, all the money you spent on the simplisafe system just went to waste because it can't be monitored by a different company.
Honeywell, DSC, GE, 2GIG systems can be monitored by any reputable UL listed central station. You're not locked into a specific company.
If you're okay with all of that, have at it.
Sorry
@drunkpenguin the post isn't directed at you personally. I would just like forum members who are interested in purchasing an alarm system understand the disadvantages of purchasing a simplisafe system before they purchase it.