Attributes

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

6 reviews

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.

5 FAQ

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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