CEM DT -5301V Curve Tracer, PV Analyser – Multifunction Tester with I-V curve tracing for upto 1500V DC. Class A, conforms to IEC 62446-1 standards for Category 1 & Category 2 tests. Open-circuit voltage (VOC) measurement at the PV module/string up to 1500V DC. Short-circuit (ISC) current measurement at the PV module/string up to 20 A DC. On-location I-V curve results with built-in analyser