DROK Digital Multimeter Volt Amp Watt Meter — 8–100V 100A Battery Monitor with 2.4" Color LCD for 12V–60V RV Solar Systems

The DROK Digital Multimeter is a 8–100V, 0.05–100A coulombmeter with a large color LCD that tracks voltage, current, power and battery capacity for RVs, solar arrays, boats and battery systems.

This compact, two-part monitor combines a bright 2.4-inch color display board and a separate measurement board to give continuous readings of voltage, current, cumulative capacity (AH), power and runtime. Built for 12V–60V systems and beyond, it measures up to 100A and 50kW and includes configurable alarms, backlight control and language options, making it useful for off-grid setups, vehicle electrics and battery testing.

How accurate and fast are the measurements?

The DROK meter samples values 20 times per second and lists precision specs for both voltage and current. Voltage accuracy is ±1% plus two digits, while current accuracy is ±0.5% plus two digits, which is suitable for monitoring system-level performance and estimating remaining capacity.

• Voltage range: 8–100V; precision ±1% + 2 digits
• Current range: 0.05–100A; precision ±0.5% + 2 digits
• Power capacity: up to 50kW for combined voltage/current readings
• Sampling speed: 20 readings per second for near real-time updates

Which display and alert features help in daily use?

The 2.4-inch color LCD offers higher contrast and selectable backlight levels so readings remain readable in bright sun or dim locations. You can program visual alerts—like flashing backlight—for low voltage, low remaining capacity or high charging current to catch issues quickly.

• 2.4" color LCD with adjustable backlight (levels 0–10)
• Backlight alarm (LBR) flashes for low capacity or LVP-triggered conditions
• Screen auto-off options: time-based or current-threshold based
• Two display color schemes: black-white or colorful

What configuration and battery-tracking controls are available?

The unit provides several setup options to adapt to different battery types and installation quirks. You can set total battery capacity, remaining percentage, low-voltage alarm thresholds, and clear or calibrate no-load current for more accurate cumulative amp-hour tracking.

• Set battery total capacity (BAT) and available percentage (BPC)
• CLR and PAI to clear no-load current and set current-zero thresholds
• LVP and OVP to control low-voltage alarm and auto-fill max capacity settings
• Language selection (English/Chinese) and communication address (ADS)

How is the meter mounted and what physical sizes should I expect?

The product separates into a display board and a measurement board for flexible mounting: the display sits in the dash or panel cutout while the measurement board installs near the battery or shunt for wiring convenience. The display board is compact yet readable, and the included base increases mount stability.

• Display board size: 86 × 53 × 17 mm (approx. 3.39 × 2.08 × 0.67 in)
• Measurement board size: 56 × 36 × 34 mm (approx. 2.20 × 1.42 × 1.34 in)
• Panel-style face suitable for dash or enclosure mounting
• Includes mounting base for secure installation

Who this is for: Installers, DIYers and owners of RVs, boats, off-grid solar systems and automotive batteries who need a compact, configurable monitor to track voltage, amperage, power and state-of-charge. It fits situations where continuous monitoring, configurable alarms and readable color display are important for managing battery health and system performance. DROK backs the unit with a one-year warranty for added confidence.