Active Single Phase Voltage Transformer AC Voltage Sensor Module ZMPT101B

The Active Single Phase Voltage Transformer AC Voltage Sensor Module ZMPT101B is designed for AC voltage sensing and monitoring applications where an analog voltage signal needs to be read by a microcontroller or embedded system.

The module incorporates a precision miniature ZMPT101B voltage transformer along with an onboard operational amplifier signal-conditioning circuit. This arrangement provides an isolated sensing interface and allows the analog output amplitude to be adjusted using the onboard potentiometer.

The module can be used to monitor AC voltage levels up to 250V AC and is suitable for platforms such as Arduino, ESP32, STM32 and other systems capable of reading analog signals. Its compact PCB form factor makes it convenient for prototyping and embedded electronics applications.

Key Features

• Supports AC voltage measurement up to 250V
• Precision ZMPT101B miniature voltage transformer
• Adjustable analog output
• Onboard signal-conditioning op-amp circuit
• Suitable for microcontroller-based voltage monitoring
• Compact PCB design
• Useful for power and energy monitoring projects
• Suitable for Arduino, ESP32, STM32 and similar platforms
• Designed for single-phase AC voltage sensing

Applications

• AC voltage monitoring
• Power monitoring projects
• Energy management systems
• Smart-home automation prototypes
• Arduino and ESP32 projects
• Electrical measurement projects
• Embedded monitoring systems
• DIY electronics and IoT projects

Safety Note: This module can be connected to hazardous mains-voltage circuits. AC mains measurement should only be performed with appropriate electrical isolation, protection, enclosure, and supervision by a qualified person.