Tagged: Alarm system

February 7, 2017

Global Positioning System (GPS Tracking System) advantages and disadvantages

GPS stands for Global Positioning System, It is only fully operational Global Navigation Satellite System in the globe, It has about 24 to 32 earth orbit satellites which transmit the radio signals, These signals...

Technology

January 21, 2017

Motion Sensors (Motion detection) types, cons, pros & Automatic doors with a motion sensor

The motion sensors are used with other devices such as the security cameras , the alarms or lightings , The most common usages of the motion sensor is the alarm system , These alarm...