Based on the Newegg listing I retrieved, here's a product description and title:

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PZEM-051 DC Digital Multimeter 6.5-100V 100A - Voltage Current Power Energy Meter with LCD Display & 100A Shunt

Professional DC Power Monitoring with 4-in-1 Display

This advanced PZEM-051 digital multimeter provides comprehensive real-time monitoring of DC electrical systems. With simultaneous display of voltage, current, power, and energy consumption on a large LCD screen, this meter is essential for solar systems, battery banks, electric vehicles, RVs, and any DC power application requiring accurate measurement and monitoring.

Key Features:

• 4-in-1 LCD Display - Shows voltage, current, active power, and energy simultaneously on large, easy-to-read screen
• Wide Voltage Range - Measures 6.5V to 100V DC with high accuracy
• High Current Capacity - Supports up to 100A with included 100A current shunt
• Power & Energy Monitoring - Tracks real-time power consumption (0-10kW) and cumulative energy usage (0-9999kWh)
• Backlight Control - Short press button to turn LCD backlight on/off for visibility in any lighting
• Data Memory Function - Stores measurement data even when powered off
• Power Alarm & Overload Protection - Configurable alarm threshold alerts you to overload conditions
• Includes 100A Shunt - Complete package with external current shunt ready to use

Technical Specifications:

• Model: PZEM-051
• Operating Voltage: 6.5-100V DC
• Voltage Test Range: 6.5-100V DC
• Voltage Display: 6.50-99.99V (0.01V resolution)
• Current Range: 0-100A
• Current Display: 0.00-99.99A (0.01A resolution)
• Rated Power: 100A / 10,000W (10kW max)
• Power Range: 0-10kW
• Power Display: 0.0-999.9W (<1kW), 1000-10000W (≥1kW)
• Energy Range: 0-9999kWh
• Energy Display: 0-9999Wh (<10kWh), 10-9999kWh (≥10kWh)
• Measurement Accuracy: 1.0% (voltage/current)
• Current Shunt: 100A/75mV external shunt (included)
• Display Type: Large LCD with backlight
• Weight: Approximately 137g

Measurement Ranges & Display Formats:

Perfect Applications:

• Solar Power Systems - Monitor solar panel output and battery charging
• Battery Banks - Track charge/discharge cycles and energy usage
• RV & Marine Systems - Monitor house battery systems and power consumption
• Electric Vehicles - Track battery voltage, current draw, and energy usage
• Off-Grid Power Systems - Complete power monitoring for remote installations
• Wind Turbine Systems - Monitor turbine output and energy production
• Power Supply Testing - Bench testing and load analysis
• DIY Electronics Projects - Accurate power measurement for custom builds
• Industrial Equipment - Monitor DC motor systems and power consumption

Advanced Features:

• Alarm Function: Set custom power thresholds for overload warnings
• Memory Retention: All measurement data saved during power loss
• Backlight Control: Toggle display illumination for dark environments
• Real-Time Monitoring: Instant updates of all electrical parameters
• Cumulative Energy Tracking: Long-term energy consumption monitoring

Easy Installation:

1. Connect the meter to your DC power source (6.5-100V)
2. Wire the 100A shunt in series with your load
3. Connect shunt sense wires to meter
4. Power on and start monitoring

What's Included:

• 1x PZEM-051 LCD Digital Meter
• 1x 100A Current Shunt (75mV)
• Connection wires
• User manual

Wiring Configuration:

• Simple 4-wire connection: Power input (+ / -) and shunt sense (+ / -)
• External shunt handles high current while meter displays measurements
• Clear terminal markings for easy, error-free installation