LM358 Accumulator Sound Light Alarm Board

Integrated LM358 Dual Operational Amplifier: Features an onboard LM358 op-amp core for accurate battery voltage level comparison and sound/light signal conditioning.

Dual Audio & Visual Alarm Alerts: Outfitted with an active piezo buzzer and high-brightness indicator LED to deliver simultaneous audible buzzes and visual flash warnings upon fault detection.

Adjustable Voltage Threshold Trimmer: Includes an onboard multi-turn precision potentiometer to easily adjust the exact battery voltage threshold or sensor trigger level.

Screw Terminal Connections: Designed with heavy-duty screw terminal blocks for secure, solderless power supply and battery input wiring.

Broad Voltage Monitoring Compatibility: Ideal for protecting 12V lead-acid, accumulator, and multi-cell lithium battery systems from damaging over-discharge or under-voltage conditions.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with onboard LM358 IC socket, blue potentiometer, active buzzer, screw terminal block, and red LED.

Technical Specifications:

Operating Input Voltage: 10.0V - 15.0V DC (12V Nominal Accumulator/Battery).

Alarm Output Type: Piezo Buzzer Sound + Red LED Flash.

Color: Green PCB with Blue Potentiometer and Black Buzzer.

Usage Advice: Wire your accumulator or battery bank to the terminal block inputs; adjust the multi-turn potentiometer using a multimeter to set your desired low-voltage alarm threshold.

Maintenance: Keep terminal block screws properly tightened; protect circuit components from moisture, oil, and metallic filings.

Essential Battery Protection & Sound-Light Alert Board: Position as a critical safeguard module for solar accumulator storage banks, UPS backup systems, 12V battery monitors, and automated security alarms.

Highlight Immediate Dual Alert Protection: Emphasize how combined loud acoustic buzzing and visual LED flashing give users instant warning before battery over-discharge causes permanent cell damage.

Recommended Cross-Sell Add-ons: Pair with XD-21 LM358 Amplifier Module 100x Gain Operational Amplifier, Microphone Sound Sensor Module, KY-037 Microphone Sound Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Sound Sensor Modules collection page as your standard LM358 accumulator sound and light alarm board.