Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage Range | DC 3.3V - 30V |
| Detection Accuracy | ±0.1V |
| Output Signal Type | Analog / Digital Switch |
| Adjustable Threshold | Yes, via Potentiometer |
| Indicator LED | Red (Power), Green (Signal) |
| Board Dimensions | 32mm x 14mm x 5mm |
| Mounting Hole Diameter | 3.0mm |
| Compatible Platforms | Arduino, Raspberry Pi, ESP32 |
| Response Time | < 10ms |
| Package Contents | 1x Voltage Sensor Module, 1x Pin Header |
Anonymous
Mar 26, 2026
Rating: 5/5
Great sensitivity adjustment
The ability to fine-tune the trigger point is excellent. I tested it against a multimeter and the accuracy is surprisingly good for an entry-level sensor module.
Anonymous
Mar 13, 2026
Rating: 4/5
Good value, clear instructions
Solid build quality for the price. The LEDs are bright and clearly indicate status. I deducted one star because the pin spacing was slightly tight for my breadboard, but it fit eventually.
Anonymous
Mar 11, 2026
Rating: 5/5
Essential for protection circuits
Bought five of these for various over-voltage protection projects. They are consistent across all units. Shipping was fast and packaging protected the components well.
Anonymous
Mar 11, 2026
Rating: 5/5
Reliable and Compact
I used this in a custom solar charger controller. It has been running for three weeks without any drift in detection. The small form factor fits perfectly inside my enclosure.
Anonymous
Mar 05, 2026
Rating: 4/5
Does exactly what it says
No complaints here. It detects voltage drops instantly and triggers my relay correctly. Just make sure you don't exceed the 30V limit or you might fry it.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for Arduino Projects
This module works flawlessly with my Arduino Uno. The potentiometer makes it very easy to set the exact voltage threshold needed for my battery monitoring project. Highly recommended for beginners.
Q: Does the package include connecting wires?
A: The package includes the module and a pin header strip that you can solder yourself. Jumper wires are not included but are sold separately.
Q: Is a library required to use this with Arduino?
A: No external library is needed. You can read the analog value using the standard analogRead() function or use the digital output as a simple HIGH/LOW signal.
Q: Can this module detect AC voltage?
A: No, this module is designed strictly for DC voltage detection. Using it with AC sources may damage the component.
Q: Can I power the module itself with 5V while measuring 24V?
A: Yes, the module logic can be powered by 3.3V or 5V, while the input detection range supports up to 30V independently.
Q: What is the maximum current this sensor can handle?
A: This is a voltage sensing module with high input impedance; it draws negligible current (less than 5mA) from the source being measured. It does not switch high currents directly.
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