Compact solar panel tester for field and manufacturing use This handheld meter provides quick, reliable measurements of key solar panel parameters without needing an internal battery. It draws power directly from the connected panel, so it is ready to use wherever panels are available. Key benefits Battery operation removes the need to carry or batteries and reduces downtime during on site testing. Clear, easy to read results on a large LCD with backlight make measurements visible even in direct sunlight. Durable ABS housing and lightweight design make the unit easy to carry and withstand regular field use. Measures the parameters installers and technicians need for performance analysis: Pmax, Vmp, Imp, and Voc. Main features Batteryless operation powered by the connected solar panel for immediate use. Large backlit LCD for readable data in bright outdoor conditions. Displays Pmax, Vmp, Imp, and Voc for complete performance checks. ABS construction for impact resistance and low weight. Includes a storage case for safe transport and convenient organization of the tester. Compatibility and applications Compatible with portable, foldable, and roof mounted solar panels. Suitable for manufacturers performing production checks, distributors conducting acceptance tests, installers commissioning systems, and enthusiasts validating panel output. Typical use scenarios Rooftop installation: verify Voc and Vmp during installation to confirm correct panel wiring and expected operating voltage before finalizing connections. Mobile or camping setups: quickly check a foldable panel at a campsite to confirm peak power and current under changing light conditions. Warehouse or production line: perform spot checks on delivered panels to confirm Pmax and Imp match specifications before or inventory. Why choose this tester Simplifies on site diagnostics by combining essential measurements in a single, portable tool. Eliminates battery maintenance and keeps testing workflows efficient. Built for outdoor use with readable display and a protective case for transport and storage.