Features: LCD Backlight Display: Eauipped with a clear-definition LCD display, with backlight function, simple and convenient operation. Multifunctional Design: 1600W PV panel multimeter, support auto/manual detection mode switch, measure PV panel maximum power point power, maximum power point voltage, maximum power point current, measure PV panel open circuit voltage. Automatic Measurement: Easy operation, when you press the [Auto MPPT] test button, the multimeter will test itself according to the current power value, the instrument automatically adjusts the test interval time according to the size of the current power value, and refreshes the digital display. Manual Measurement: Press the [Manual MPPT] test button as you wish, the instrument automatically adjusts the test interval time according to the current power value, the larger the power, the longer the interval time, and refreshes the digital display. Power Supplying: Powered by solar panel (not included), it eliminates the need for battery and is economical and energy efficient. Five Protections: With multiple protections of over temperature protections, over voltage protections, over current protections, reverse connection protections and over rated power protections. Wide Applications: Suitable for photovoltaic panel manufacturers, photovoltaic panel operators, photovoltaic panel installers photovoltaic panel users, photovoltaic enthusiasts, etc. Specifications: Material: plastics Display: LCD display with backlight Power: 5-1600W Voltage: 12-60V Current: 0-60A