A simple but very useful module which uses a potential divider to reduce any input voltage by a factor of 5. This allows you to use the analogue input of a microcontroller to monitor voltages much higher than it capable of sensing. For example with a 0-5V analogue input range you are able to measure a voltage up to 25V. The module also includes convenient screw terminals for easy and secure connection of a wire.

Specification:
Divider ratio: 5:1
Resistor Tolerance: 1%
Max input voltage: 25V 
Resistor Value: 30K/7.5K Ohm

Pinout:

INPUT
1....GND
2....0-25V

OUTPUT
1...Sense
2...N/C
3...GND