System Sensor P4RK 4 Wire Outdoor Horn-Strobe Standard CD, Red

yeah what does the guys want my Chum video so today I'm doing another frontal on video so in this review basically I'm gonna be doing a review of the system sensor p2 RH - oh I love trilogy shatters fire on one strobe this is a red one but I'm doing a review of it and testing it so basically what is low frequency is Andriy and what's the difference between unnormal system sensor special to advanced well we don't know good enough differences here they look similar and the same type of stroke but this one is hiking girls room she's one can go from 135 to 185 this one can go from 115 to 115 can know um really what's the difference between a little frequencies at it and that's well let me tell you so basically scientists have studied that a certain turn around five hundred twenty Hertz house waking up or help wake up sleeping people so basically this tone they've studied they've done tests