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This module is based on principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller.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 3.3Vx more...
The AC voltage detector is used to indicate the presence or absence of line voltage. This is useful, for example to tell when the UPS is running on battery power. more...
Electrohms is a well established manufacturer and supplier all kinds of voltage sensor in india. more...