I have one of these
It connects to a transmitter powered by 3x AA batteries and sends the signal to a display that shows current, daily, weekly and monthly power consumption
I’d like to connect the CT to an Arduino
I’ve checked the current delivered by the CT using a multimeter and a load of 9W (led bulb); when the bulb is on I get 0.6 uA (micro A) 0.000006 A
Considering 9W/220V = 0.04A
0.04A/0.000006A = 6800
Can the CT really have 6800 windings?