Review on Viper 3100V 1 Way Security System by Delos Rodeo

I wanted a very cheap car alarm and got what I wanted! However, it may have been cheaper than I wanted. He closes and opens doors but when he does more I don't get it! When I got back I found the kids playing in the back of the truck and the alarm never went off. I know there is a setting for this, but I don't think it works properly. I have another car alarm on my other car and it's amazing! It worked so well on my last car that I bought it again for this car, I also bought it as a gift for my boyfriend and he is happy too. It has automatic door locks and will warn you with a delay if the door is not fully closed. This is the Viper 350 Plus. https://smile.amazon.com/gp/product/B00C1T8P1O/ref=oh_aui_search_detailpage?ie=UTF8&psc=1