Check your battery performance on-screen or by phone

Keep track of your power system from anywhere with the Hardkorr Bluetooth Battery Monitor. View battery voltage, charge level, and live current draw on the colour LCD display or through the free Bluetooth app. Perfect for 4WD, caravan, and off-grid setups where visibility matters.

The built-in 500A shunt provides accurate readings of amps, volts, watts, and remaining charge. You can also set an alarm to warn you when voltage drops below your preferred level. The unit includes reverse polarity and short-circuit protection for added reliability.

It suits all common battery types, including Lithium, AGM, Gel, Wet, and Calcium. With a compact design and low power draw, it’s easy to install and run on any 12V setup.

Key Features

• High-precision 500A shunt for accurate current and voltage data
• Full-colour LCD screen and Bluetooth smartphone app
• Displays voltage, amps, watts, amp-hours, and charge percentage
• Custom alarm for low-voltage or discharge levels
• Works with Lithium, AGM, Gel, Wet, and Calcium batteries
• Short-circuit and reverse-polarity protection
• Simple DIY install with included wiring and shunt
• Low power draw under 1W

Specifications

What’s in the Box

• 1 × LCD display module
• 1 × 500 A shunt
• 1 × 6 m shielded cable
• 1 × 6 m B+ wire
• 1 × Mounting screws and pad
• 1 × Indicator card

More Info

Precision Design for Serious Power Systems

The 500A shunt ensures exact measurements of real-time current draw and charge remaining, making it perfect for lithium power setups and dual-battery systems in caravans or 4WDs.

Reliable Build and Protection

The unit includes reverse-polarity and short-circuit protection and runs at less than 1 W power draw, so it won’t drain your battery.

Ideal for campers, boat owners, and off-grid travellers who want accurate battery monitoring with modern convenience.