The temperature change is not that significant in my mind, the pir false detections seem worse in the day (almost every 5-10 mins) than in the evening, all my neighbors on both side of me and across the street have hard wired surveillance camera installed on the exterior of their house, is it possible I am getting interference from their cameras that is interfering with the PIR setting on the 2330L?
The utility box I haven't ruled out yet either, I think inside the box are the city utilities services so maybe a transformer within could be affecting the pir?