The COM-AM02 is a compact and versatile digital DC ammeter designed for precise and reliable current measurement in a wide range of low-voltage applications. Operating with a supply voltage between 4 and 30 V DC, it measures currents from 0 to 20 A DC with a fine resolution of 0.1 A, making it ideal for laboratories, mobile power systems, and custom electronic projects.

Equipped with a bright 0.56″ per digit green LED display featuring a 3-digit segment layout, the module offers excellent readability even in bright ambient light. The 500 ms refresh rate ensures a smooth and responsive display, while the ±1 % + 2 digits accuracy provides dependable measurement results.

A special highlight of the COM-AM02 is the integrated calibration potentiometer, which allows users to fine-tune and recalibrate the display for maximum precision. This feature makes the module especially valuable for long-term installations or applications where exact current values are critical.

The ammeter uses a four-wire connection system: two thicker leads (red and black) are dedicated to current measurement, while two thinner wires provide the power supply and ground reference. This separation minimizes measurement interference and ensures stable operation even under load variations.

With its robust and lightweight construction (28 g), wide operating temperature range (–10 °C to +65 °C), and compact dimensions (48 × 29 × 22 mm), the COM-AM02 is easy to integrate into control panels, power distribution boxes, laboratory instruments, and embedded systems.

Whether in industrial, automotive, or educational environments, the COM-AM02 delivers a cost-effective, space-saving, and highly accurate solution for monitoring DC currents — complemented by its user-adjustable calibration potentiometer for optimal long-term performance.