ACS712 30A Hall Current Sensor Module, Color : Blue

  the current sensor chips acs712elc-05b pin 5v power supply, on-board power indicator the module can be measured plus or minus 30 amps, corresponding to the analog output of 185 mv or a there is no detection current through, the output voltage is vcc or 2 pcb board size: 31 (mm) x13 (mm) the device consists of a precise, low-offset, linear hall circuit with a copper conduction path located near the surface of the die. applied current flowing through this copper conduction path generates a magnetic field in which the hall ic converts into a proportional voltage.