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$18.09
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LM393 Voltage Comparator Module, 4.5-28V Analog Comparator Control Board with High Level Output and LED Indicator
- Wide working voltage range 4.5V to 28V, compatible with most DC power supply scenarios.
- Adopts high-precision LM393 chip, stable analog voltage comparison and trigger control.
- High level output design, convenient to drive relay, MCU and other control equipment.
- Built-in LED indicator, clearly displays working status at a glance.
- Compact module layout, simple wiring, perfect for electronic DIY, overvoltage and undervoltage detection.
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Overview
Specs
Reviews
This LM393 voltage comparator module features wide 4.5-28V operating voltage and reliable analog signal comparison function. It outputs high level signal after voltage threshold triggering, equipped with onboard LED indicator to show real-time working state. With stable performance and strong anti-interference ability, it is easy to install and wire. Widely used for voltage detection, signal triggering, automatic control circuits and various electronic maintenance and DIY project applications.
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- Return for refund within: 15 days
- Return for replacement within: 30 days
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