3Pcs 1Channel AC 220V Optocoupler Module 220V Voltage Detect 220V Optocoupler Isolation Microcontroller TTL Level 3V-5V auspowers_batchtwo 67" / 7617mm (LHW) Thickness:

67" / 7617mm (LHW) Thickness: 0

Watertight Bonding and Sealing - UV Resistant

Batteries Needed: 2 pieces AAA batteries (NOT included for safety)

Realtor Working Alone

enhancing the overall aesthetic

3Pcs 1Channel AC 220V Optocoupler Module 220V Voltage Detect 220V Optocoupler Isolation Microcontroller TTL Level 3V-5V auspowers_batchtwo 67" / 7617mm (LHW) Thickness:3Pcs 1Channel AC 220V Optocoupler Module 220V Voltage Detect 220V Optocoupler Isolation Microcontroller TTL Level 3V 5V Product Features 1 Channel 220V AC optocoupler module can be used to detect the presence or absence of 220V AC power The output TTL level can be detected by a microcontroller, stabilizing the output of high and low levels (NPN output) When detecting 220V input, the LED light is on, and the optocoupler is conducting and outputting a