@Ham wrote:
No, I am an old and disabled person. However, I am a specialist in the security systems for banks, cars, homes, etc. About 50 years ago I founded a very successful security company and run it for more than 10 years until my immigration to the US. This is why I have experience in this, not an easy engineering area.
I am old also, and I wasn’t born in the US either. But you missed my point about being "super-duper blazing fast". In my previous explanations, I was trying to make the craziest extreme scenario-examples, to emphasize that during the typical normal routine of arming and departing, a typical thief does NOT have sufficient opportunity to break-in without triggering the alarm.
But you just said, _"_you and probably the whole Ring team simply do not understand the security systems technology and this particular problem as well." A criticism, that all of us are wrong and yet you are correct.
This might be true, but I presented detailed examples of why I have formed my opinion . . . . and you gave NO examples as to how the Ring alarm system is serious flawed because of the “Dwell-Time” feature of the Motion-Sensors.
You simply don’t expect people to change their opinion “just because you say so.” Touting your credentials does indeed add more weight to your opinion, but just because of that, it doesn’t make you right. And the same applies to me with my background, but that alone doesn’t make me right either. I’m am a retired engineer with multiple academic degrees. And during my childhood, my father professionally installed commercial-grade alarm systems mostly in business establishments, but in homes too. I learned a lot from my father, and sometimes helped him install alarm systems in houses. I hated crawling in attics, basements, and tiny spaces, pulling wire through-out the homes . . . but it was good quality “father & son” time.
But at least I’ve written examples as to the logic I used to form my opinion. So, I would like to read some of your examples of situations & scenarios that support you view-point, that “The Dwell-Time of the Ring motion-detector makes it a serious safety flaw.”
Also, back in Dec 1, 2019 you wrote, “leave home during the exit delay time . . . with 3 minutes of additional delay.” That is an incorrect statement. To stress and clarify my point, the "Dwell-Time of 3-minutes (Gen1) is occurring simultaneously & concurrently as the Alarm Exit-Delay count-down is occurring. The Dwell-Time is NOT an additional 3-minutes that starts after the Exit-Delay has expired. Even if a thief could break-in before the Dwell-Time was finished (thief would have to be super-duper-blazing-fast and very bold to do it while you are still in the vicinity), the motion-sensor would be ready to trigger the alarm from his movement almost immediately.
You stated in your opinion, sensors must be ready immediately upon arming. This is not a commercial-grade, high-tech alarm system. Ring motion-detectors are designed as affordable sensors for household use only. Unlike most hardwired, professional-grade detectors, Ring sensors are wireless and battery-powered, and ALL Ring sensors are always ON (there is no OFF switch). These features make it affordable and easy to install and satisfies the needs of most people well.
Although a motion-sensor (Gen1) might not immediately be ready at the instant the Exit-Delay is completed, it will be in mere seconds (when normal NON-super-duper-blazing-fast people do their exit routine). The time between an Armed system and the ability of the Motion-sensor to trigger the alarm is too short for a typical thief, in almost every case.
In my case, I set a 30-second Exit-Delay on my Ring Alarm (Gen2) and utilize the Gen2 Motion-sensors (30-second Dwell-Time). And with my settings, my Gen2 motion-detector IS Ready Immediately at the completion of the arm count-down.
If I’m wrong, I’ll gladly admit it, but you haven’t given any examples so far to change my opinion. I honestly and truly welcome your examples to back your claim, and maybe I shall change my mind. Until then, my opinion remains unchanged. 