Security sensors powered by microUSB

MicroUSB

— through the microUSB connector, security sensors are powered by a constant voltage of 5 V and small currents.

External power supply of security sensors with a microUSB connector can be set up from a standard smartphone charger or any other suitable adapter. Often, power through the microUSB port is combined with stand-alone power — from replaceable batteries of a standard size (see paragraph "Battery Power").