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GY-471 MAX471 Voltage Current Volt Amp Test Sensor Module 3A Range

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Description

This module can be used to test the current and voltage

The principle of voltage test based on principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller

For Arduino analog input voltages up to 5 v, the voltage detection module input voltage not greater than 5Vx5=25V (if using 3.3V systems, input voltage not greater than 3.3Vx5=16.5V).for Arduino AVR chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023), so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V

The MAX471 chip on the board used to test the consume current of the load


Parameters:
Test Voltage range: DC3 - 25V (for Arduino work on 5V) or DC3 - 16.5V (for Arduino work on 3.3V)
Test Current range: DC0 - 3A
Size: 19.5 * 20.3mm