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[UP TO AC] Designed to measure single phase AC voltage within this module supports common household voltage monitoring tasks and provides adjustable analog quantity output. [HIGH ACCURACY ] Equipped with ZMPT101B series high accuracy voltage transformer and precision operational amplifier circuit helping achieve stable AC power acquisition and sampling. [WIDE 5 TO 30V INPUT] Works with a 5 to 30V power supply making it suitable for many electronics setups test benches and controller projects where flexible DC input is needed. [ANALOG SINE OUTPUT] Delivers a sine output signal with waveform DC component which is useful in voltage sampling applications requiring analog signal reading and processing. [EASY TO USE BOARD] Built as a compact transformer module with miniature voltage transformer structure offering convenient integration for DIY users learners and electronic testing scenarios.