DC 0-25V Voltage Detection Sensor Module

The DC 0-25V Voltage Detection Sensor Module is a resistive voltage divider sensor that scales any DC input voltage from 0.02445V up to 25V down to the 0 to 5V analog range accepted by an Arduino ADC pin, with a resolution of 0.00489V per ADC step. The voltage sensor connects two wires from the measured DC source to the module input, and the scaled analog output connects to any Arduino analog input for voltage reading using analogRead() — the arduino voltage sensor conversion formula is: Actual Voltage = analogRead() × (5.0 / 1023) × 5, where the multiplier of 5 accounts for the onboard 5:1 resistive divider ratio.

The dc voltage sensor compact 25mm x 15mm PCB integrates directly into breadboard and prototype builds without any external components. The 25v voltage detection sensor covers the most commonly used DC voltage ranges in Indian college projects — 5V logic supplies, 12V DC adapter rails, and 24V automation panel supplies — in a single module without range switching or calibration. Unlike the ZMPT101B which detects AC mains voltage, this voltage detection sensor is designed purely for DC measurement and operates passively without any separate module power supply.

the resistive divider architecture of this voltage sensor means a small continuous current flows through the divider resistors even when no measurement is active — this standby current drain is not suitable for extremely low-power battery monitoring applications where micro-amp standby consumption is required. StemVolt provide sensor for engineers integrating DC voltage sensing into Arduino battery monitoring and practical embedded power electronics builds.

Related Products:

• Checkout ZMPT101B AC Voltage Detection Sensor

• Explore the current and voltage sensors category

Features:

• 0 to 25V DC range covers 5V 12V and 24V supply rails
• 0.00489V per step resolution for precise battery voltage monitoring
• 5:1 resistive divider scales 25V input to 5V Arduino analog range
• Passive design needs no module power supply or external components
• Compact 25mm x 15mm PCB for breadboard and prototype integration

Technical specifications:

 Applications:

• Voltage Detection Module used for Arduino 12V battery state-of-charge monitor
• College project uses voltage sensor for DC power supply voltage display
• Solar logger uses arduino voltage sensor for panel open-circuit voltage read
• Robot chassis uses dc voltage sensor for battery low-voltage alert build
• Lab bench uses 25v voltage detection sensor for DC rail verification

Package includes:

• 1 x DC 0-25V Voltage Detection Sensor Module