ความรู้เพิ่มเติม:
   - CT sensors - An Introduction
   - Interfacing with an Arduino

ตัวอย่างโคด

#include "EmonLib.h"
// Include Emon Library
EnergyMonitor emon1;
// Create an instance
void setup()
{
  Serial.begin(9600);

  emon1.current(1, 111.1);             // Current: input pin, calibration.
}

void loop()
{
double Irms = emon1.calcIrms(1480); // Calculate Irms only
Serial.print(Irms*230.0); // Apparent power
  Serial.print(" ");
  Serial.println(Irms); // Irms
}

Model：SCT013-030

Characteristic:

Opening size 13mmx13mm, Compatible to foreign

products, leading wire 1 metre, standardΦ3.5

three core plug output, current &voltage two

types of output. (Patent No. ZL 2015 3 0060067.X）

Technical indicators:

Hanging installation,leading wire output

Fire resistance property:UL94-V0

Standard:GB1208-2006

Work temperature:-25℃～+70℃

Storage temperature:-30℃～+90℃

Work voltage:660V

Frequency range:50Hz-1KHz

Dielectric strength:3.5KV 50Hz 1min