I got the new version and I am happy about this!! :) There is no more Sleep mode in the new version; instead, the button on the remote for the old sleep mode is use for sensitivity. One click, and the bell switch will illuminate 1 time (lowest sensitivity), press again the bell switch will flash 3 times (highest sensitivity), press again, and the bell switch will flash two times for (guess what?) medium sensitivity and so on... No more delay when arming the alarm. Active right after pressing the lock button, and the bell switch will show the red light for about 3 seconds. Same thing when disarming. Very loud! Good product
Very high quality, but the alarm is not very sensitive at all. I bought this for the alarm function, so I'm a bit disappointed. Do you only need the horn, then it's a good buy!