DC 0-300V 200A Hall Effect Ammeter Voltmeter LED Battery Monitor

Monitor your battery system with precision using the A02F-3X Hall Effect Ammeter Voltmeter — a dual-function DC voltage and current meter with a bright LED display. Designed for 12V, 24V, 36V, 48V, and 60V battery systems, this compact monitor is ideal for electric vehicles, solar setups, golf carts, RVs, and more.

Why Choose the A02F-3X Battery Monitor?

• Wide Voltage Range: Accurately measures DC voltages from 0 to 300V across a variety of battery configurations.
• High Current Capacity: Handles up to 200A using a non-contact Hall effect sensor for safe, reliable readings.
• Bidirectional Current Measurement: Reads both positive and negative current flow — perfect for charge and discharge monitoring.
• Non-Destructive Hall Sensor: Perforated, isolated sensing technology means no direct wire cutting or interruption to your circuit.
• Bright LED Display: Clear, easy-to-read readout even in direct sunlight or low-light conditions.
• Compact Design: Housing and sensor perforation diameter of 45.5 x 26mm fits neatly into dashboards, panels, and enclosures.
• Durable ABS Construction: Robust ABS housing built to withstand the demands of automotive and industrial environments.

Key Specifications

• Voltage Measurement Range: DC 0–300V
• Current Measurement Range: 0–200A (bidirectional)
• Sensor Type: Hall Effect (non-contact, isolated)
• Display: LED
• Sensor Perforation Diameter: 45.5 x 26mm
• Material: ABS
• Compatible Voltages: 12V / 24V / 36V / 48V / 60V DC systems

Ideal Applications

• Electric vehicles & e-bikes
• Solar battery banks
• Golf carts & mobility scooters
• RVs & marine battery systems
• Industrial power monitoring

For guidance on safe electrical measurement practices, visit the OSHA Electrical Safety resource page.

Frequently Asked Questions

Q: What does the A02F-3X Hall Effect Battery Monitor measure?

A: The A02F-3X measures both DC voltage (0–300V) and current (0–200A) simultaneously using a Hall effect sensor. It provides real-time readings of your battery system's voltage and bidirectional current flow — showing both charging and discharging states — all displayed on a clear LED screen.

Q: What is a Hall effect sensor and why does it matter?

A: A Hall effect sensor measures current by detecting the magnetic field generated around a conductor — without making direct electrical contact. This means it's non-destructive, electrically isolated, and safe to install without cutting or interrupting your main power cables.

Q: What battery systems is this monitor compatible with?

A: The A02F-3X is compatible with a wide range of DC battery systems operating at 12V, 24V, 36V, 48V, and 60V, making it suitable for electric vehicles, solar arrays, RVs, golf carts, and more — any system within its 0–300V range.

Q: How do I install the A02F-3X battery monitor?

A: Installation involves threading your main battery cable through the Hall effect sensor ring (45.5 x 26mm perforation diameter) and connecting the monitor's voltage leads. No wire cutting is required. The compact ABS housing can be panel-mounted for a clean, professional finish.