ZMPT101B Voltage Sensor Module – AC Voltage Detection for Arduino

The ZMPT101B Voltage Sensor Module is designed to accurately detect and measure AC mains voltage (up to 250V). It features an onboard precision voltage transformer and adjustable gain op-amp, enabling clean analog voltage output for microcontroller-based systems like Arduino, ESP32, or Raspberry Pi.

This sensor is perfect for home automation, smart meters, energy monitoring, and IoT projects that require real-time AC voltage analysis.

🔧 Key Features:

• Based on ZMPT101B high-precision voltage transformer

• Detects 220V–250V AC mains voltage

• Adjustable sensitivity via onboard potentiometer

• Analog output for real-time voltage reading

• High electrical isolation for safe operation

• Operating voltage: 5V DC