This solar multimeter is designed specifically for photovoltaic panel testing, combining automatic and manual MPPT detection with direct operation that does not require an external power supply. It provides the measurements needed to evaluate maximum power point and open circuit voltage, helping technicians and installers diagnose and optimize solar installations. Key benefits Easy to operate: automatic MPPT detection plus manual MPPT detection simplifies setup and testing, reducing the need for additional tools. Safe testing in varied conditions: builtin overvoltage, overtemperature, overcurrent, and overrated power protection safeguards equipment and operator during measurement. Improved usability in low light: second generation upgrade includes a backlit LCD display for clear readings in dim environments. Focused on photovoltaic systems: measures maximum power point and open circuit voltage, delivering the data required to assess panel performance and make informed adjustments. Reliable readings: designed for accurate measurement of key PV parameters so you can identify issues and verify system behavior. Features Detection modes: automatic MPPT detection for handsoff measurement and manual MPPT detection for controlled testing. Power operation: functions without an additional power supply, enabling faster deployment in the field. Protection features: overvoltage protection, overtemperature protection, overcurrent protection, and overrated power protection to prevent damage during testing. Display: backlit LCD for enhanced visibility during early morning, late afternoon, or indoor testing. Application focus: intended for use with solar photovoltaic panels and systems. Practical use scenarios Field commissioning: verify maximum power point and open circuit voltage during installation to confirm panels meet expected output before connecting to an inverter. Troubleshooting and maintenance: locate underperforming modules, assess shading or connection issues, and confirm the effectiveness of repairs. System verification and performance checks: periodically test arrays to track changes in MPP and Voc and support decisions about cleaning, replacement, or system upgrades. Who should use this tool Solar installers, maintenance technicians, system integrators, and anyone responsible for testing or validating photovoltaic panels and small solar arrays. What it solves Eliminates the need for a separate power source during testing. Reduces risk of equipment damage and inaccurate readings with builtin protections. Makes measurements easier in low light thanks to the upgraded backlit display. Provides both automated and manual MPPT options to match different testing needs. This multimeter focuses on the essential measurements required for photovoltaic panel evaluation and safe operation, making it a practical tool for professional PV work.