The ZMPT101B AC Voltage Sensor Module is the go-to component for engineers and students who need to safely measure AC mains voltage (up to 250V) with a microcontroller like Arduino or ESP32. Unlike direct measurement, which is dangerous, the ZMPT101B uses a precision miniature voltage transformer to provide galvanic isolation —keeping you and your microcontroller completely safe from AC mains.
At Robo Tech Valley, we supply genuine ZMPT101B modules that have been tested for accuracy and consistency. Each module is quality-checked before shipping, ensuring you receive a reliable sensor for your energy monitoring or smart metering project. We deliver all over Bangladesh —from Dhaka to Sylhet, Chittagong, Khulna, and beyond.
This sensor is increasingly popular in Bangladesh’s growing IoT and smart grid projects. Energy monitoring systems for factories and office buildings, smart electricity meters, UPS monitoring, and automatic voltage regulators (AVR) for rural areas all benefit from the ZMPT101B’s precision and safety.
The module outputs an analog voltage proportional to the AC input, which your Arduino reads via an analog pin. After calibration, you can measure AC RMS voltage with high accuracy. The onboard op-amp circuit ensures a clean, stable signal even with varying loads on the AC line.
For electronics engineering students at BUET, KUET, and other universities working on final year projects involving energy management, smart metering, or power quality analysis, the ZMPT101B is an essential and affordable component that brings professional measurement capability to your Arduino-based project.
Specifications Table
| Parameter | Value |
|---|---|
| Measurement Range | 0 – 250V AC |
| Input | Single Phase AC |
| Output | Analog voltage (proportional to AC input) |
| Supply Voltage | DC 5V |
| Isolation | Galvanic isolation (safe from AC mains) |
| Adjustment | Onboard potentiometer for signal calibration |
| Operating Temp | -40 to +70 degrees Celsius |
| Compatible With | Arduino, ESP32, Raspberry Pi, STM32, all ADC platforms |
This product is ideal for:
- Smart energy meter for home and office
- Factory energy monitoring system
- UPS input/output voltage monitoring
- Automatic Voltage Regulator (AVR) feedback
- Power quality analyzer for laboratories
- Final year project for EEE and ETE students
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