Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | ZMPT101B |
| Input Voltage Range | AC 0-250V |
| Output Signal | Active AC Voltage |
| Phase Type | Single-Phase |
| Linearity Error | < 0.5% |
| Operating Frequency | 50Hz / 60Hz |
| Supply Voltage | DC 5V |
| Interface Type | Analog Output Pin |
| PCB Dimensions | 32mm x 24mm |
| Application | Smart Metering & Monitoring |
Anonymous
Mar 20, 2026
Rating: 5/5
Low noise output
Impressed by how low the noise floor is on the analog output. Makes filtering in software much easier. Delivery was fast too.
Anonymous
Mar 19, 2026
Rating: 5/5
Perfect for Arduino Energy Monitors
This module works flawlessly with my ESP32 project. The signal is clean and the linearity is excellent across the tested range. Highly recommended for DIY smart home setups.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable for classroom projects
We bought ten of these for our electronics workshop. They are robust and safe for students to use when measuring mains voltage indirectly. Great purchase.
Anonymous
Mar 14, 2026
Rating: 4/5
Good value, needs calibration
The build quality is solid. You do need to calibrate it in your code to get precise readings, but that is expected for this type of sensor. Works as described.
Anonymous
Mar 06, 2026
Rating: 4/5
Does the job well
Using this to monitor solar inverter output. It handles the fluctuations well. Only wish the terminal blocks were slightly larger for thicker wires.
Anonymous
Mar 03, 2026
Rating: 5/5
Excellent accuracy
Compared readings against a multimeter and the deviation was negligible after basic calibration. Very happy with this sensor module.
Q: What microcontroller boards are compatible with this sensor?
A: It is compatible with any board that has an analog input pin, such as Arduino Uno, Nano, ESP8266, and ESP32.
Q: Can this module measure DC voltage?
A: No, the ZMPT101B is designed specifically for Single-Phase AC voltage measurement only.
Q: Is isolation provided for safety?
A: Yes, the module uses a voltage transformer which provides galvanic isolation between the high-voltage AC input and the low-voltage output side.
Q: What is the maximum current this module can handle?
A: This is a voltage sensor, not a current sensor. It measures potential difference up to 250V AC; current draw from the circuit being measured is negligible.
Q: Does it come with a library for Arduino?
A: We do not provide a proprietary library, but there are many open-source libraries available online specifically for the ZMPT101B that work perfectly.
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