ZMPT101B AC Voltage Sensor Module

The ZMPT101B AC Voltage Sensor Module is a high-precision module designed for measuring AC voltage in the range of 0 to 250V. Featuring the ZMPT101B voltage transformer and an onboard signal conditioning circuit, this module provides an analog output that is directly readable by microcontrollers like Arduino, ESP8266, ESP32, and Raspberry Pi.

Ideal for home automation, energy monitoring, and smart grid applications, the module allows safe and isolated measurement of live AC voltage using simple analog-to-digital conversion.

Key Features:

• High Accuracy AC Voltage Measurement: Measures 0–250V AC with minimal error

• Galvanic Isolation: Ensures safety by isolating the high-voltage line from the low-voltage microcontroller

• Analog Output Signal: Easy to read using Arduino/ESP analog input pins

• Adjustable Gain: Onboard potentiometer to calibrate and scale the output signal

• Compact and Ready-to-Use: No external circuitry required for basic operation

Specifications:

• Voltage Detection Range: 0 – 250V AC

• Output Type: Analog voltage (centered around VCC/2, varies with AC amplitude)

• Operating Voltage: 5V DC

• Current Consumption: ~10 mA

• Transformer Type: ZMPT101B high-precision voltage transformer

• Interface Pins: VCC, GND, AOUT (analog output)

• Board Dimensions: Approx. 49mm x 19mm

• Response Frequency: Up to 1 kHz (suitable for 50/60Hz mains monitoring)

• Adjustable Output: Onboard potentiometer for sensitivity adjustment

Applications:

• Home and industrial AC voltage monitoring

• Smart energy meters and power analyzers

• Home automation and load detection

• Electrical safety systems

• IoT-based smart grid solutions

With its compact design and simple interfacing, the ZMPT101B module is a reliable choice for anyone looking to measure AC voltage safely and accurately in embedded systems.