4-Pack LM358 Signal Amplifier Modules with Adjustable Potentiometers

4-Pack LM358 Signal Amplifier Modules – Boost Weak DC Signals with Precision

Take your electronics projects to the next level with this set of 4 LM358-based Signal Amplifier Modules. Built around the reliable LM358 operational amplifier IC, each module is engineered to detect and amplify weak DC signals — from millivolt-level inputs — delivering strong, stable output for a wide range of DIY and professional electronic applications. Made in Mainland China.

Key Features

• LM358 Op-Amp Core: Each module is centered on the industry-standard LM358 op-amp IC, specifically designed to amplify low-level DC signals effectively and consistently.
• Millivolt Signal Detection: Capable of picking up and boosting signals as low as a few millivolts, making these modules ideal for sensitive signal acquisition tasks.
• Dual Adjustable Potentiometers: Two onboard potentiometers allow quick and easy fine-tuning of amplification levels — simply rotate counterclockwise to dial in your desired gain without any additional components.
• Wide Voltage Range (3.5V–24V DC): Compatible with a broad spectrum of DC power supplies, from small battery-powered setups to bench power units, giving you maximum flexibility.
• Quality PCB Construction: Each module is built on a green PCB with meticulous attention to component placement, ensuring reliable and repeatable performance across projects.
• Value Pack of 4: Receive four identical modules in one purchase — perfect for multi-channel setups, spares, or sharing across multiple builds.

Specifications

Package Contents

• 4 × LM358 Signal Amplifier Module

Who Is This For?

Whether you're an electronics hobbyist, a student learning circuit design, or a professional engineer prototyping signal conditioning circuits, these LM358 modules are a versatile, affordable, and dependable addition to your toolkit. They work great with sensor outputs, data acquisition systems, automation circuits, and more.

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Frequently Asked Questions

Q: What type of signals can the LM358 signal amplifier module boost?

A: The LM358 signal amplifier module is designed to boost weak DC signals, including those as low as a few millivolts. It is well suited for use with low-output sensors, data acquisition units, and other signal conditioning applications in electronics projects.

Q: How do I adjust the amplification level on these modules?

A: Each LM358 module features two onboard adjustable potentiometers. To increase or fine-tune the amplification level, simply rotate the potentiometers counterclockwise until you reach your desired signal gain — no extra tools or components required.

Q: What is the operating voltage range for these LM358 signal modules?

A: These modules support a wide DC input voltage range of 3.5V to 24V, making them compatible with most common power supplies including USB power banks, bench supplies, and battery packs used in DIY electronics and prototyping setups.

Q: Are these modules suitable for beginners in electronics?

A: Yes! The simple two-potentiometer adjustment mechanism and standard PCB form factor make these LM358 signal amplifier modules accessible for beginners while still offering the performance that experienced engineers and hobbyists expect.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.