Review on 🚦 508D Dual Zone Motion Sensor by Directed Install Essentials by Hector Liamsi

For those who get false alarms when nobody is around. When leaving the car, give the sensor about 7-10 seconds before arming! This allows the sensor to take average readings to compare it to when it's on! If you turn it on too quickly, it will compare the measurements with the door open, and now that the door is closed it will chirp randomly and often! After you figure this out, it's MUCH more reliable! Now I only get false alarms when I close the car and then it starts raining. The rain settles on the windows and the ultrasonic sensor works, indicating that the distance to objects has changed. There is no other way but to reset the sensitivity where the sensor is useless. Answers? Install a toggle switch on the signal cable to the alarm so you can disable the sensor when you know it's going to rain at night without having to unplug it. The sensor is RAD. helps like crazy when he's alive. In the Bay Area, San Jose, California. Cars have been stolen in the past. Now I've caught thieves trying to steal my 240SX! Pair this with a dashcam that records movement and a two-way alarm that can send you notifications. Brilliant.