A02F Bluetooth Coulomb Meter – Color Screen Battery Monitor

Stay in full control of your battery system with the A02F Bluetooth Hall Coulomb Meter. Featuring a vibrant color screen and wireless Bluetooth connectivity, this advanced battery power monitor gives you real-time visibility into voltage, current, power, and remaining battery capacity — all from a single, easy-to-read display. Ideal for electric vehicles, RVs, solar setups, and marine applications.

Built from durable metal and plastic construction, the A02F is engineered to withstand the demands of daily use. Its integrated Hall sensor ensures accurate, non-invasive current measurement, while the smart alarm system keeps you informed with low voltage, high voltage, overcurrent, and low capacity alerts.

Key Features

• Color Screen Display – Clear, vibrant readout for voltage, current, power, capacity, and more at a glance
• Bluetooth Connectivity – Pair with your smartphone for remote monitoring and data logging
• Hall Sensor Technology – Accurate, non-contact current measurement up to 400A
• Smart Alarm System – Configurable low voltage, high voltage, overcurrent, and low capacity alerts
• Wide Compatibility – Suitable for electric vehicles, RVs, boats, solar battery banks, and more
• Durable Construction – Metal and plastic housing built for long-term reliability
• Easy Installation – Designed to slot into your existing battery monitoring setup with minimal hassle

Product Specifications

• Model: A02F
• Display: Color Screen
• Connectivity: Bluetooth
• Sensor Type: Hall Effect
• Max Current: 400A
• Material: Metal + Plastic
• Alarms: Low voltage, high voltage, overcurrent, low capacity
• Brand: Qme

Who Is It For?

Whether you're managing the battery health of an electric car, a recreational vehicle, a solar power installation, or a boat, the A02F gives you the precise data you need to make informed decisions and prevent unexpected power issues. A great choice for both DIY enthusiasts and professional installers.

Learn More

For guidance on automotive electrical safety and best practices, visit the U.S. Consumer Product Safety Commission (CPSC).

Frequently Asked Questions

Q: What does the A02F Bluetooth Coulomb Meter measure?

A: The A02F monitors key battery parameters including voltage, current, power output, and remaining capacity in real time. It displays all readings on a clear color screen and can transmit data wirelessly to your smartphone via Bluetooth, making it a comprehensive battery management solution for electric vehicles, RVs, solar systems, and more.

Q: How does the Hall sensor work in this battery monitor?

A: The Hall Effect sensor measures current passing through a conductor without direct electrical contact. This non-invasive approach provides accurate readings up to 400A while minimizing installation complexity and reducing wear. It's a reliable technology widely used in professional-grade battery monitoring equipment.

Q: What alarm functions does the A02F Coulomb Meter offer?

A: The A02F features four configurable alarm modes: low voltage alarm, high voltage alarm, overcurrent alarm, and low capacity alarm. These alerts help you stay ahead of potential battery issues, giving you timely notifications so you can take action before any disruption occurs.

Q: Is the A02F compatible with my vehicle or solar setup?

A: The A02F is designed for broad compatibility, supporting electric vehicles, RVs, marine vessels, and solar battery banks. As long as your system operates within the meter's voltage and current specifications, it can be integrated with ease. Refer to the product documentation for full voltage and current range details.