... ; A grade instability of irradiance; Pneumatic and buffering contact, front probe contact, back contact;Four-line survey; 10 parameters display; 8 ... votage0~0.8V(resolution 1mV)Measuring current0~20A(resolution 1mA)Test Parameters1sc, Voc, Pmax, Vm, Im, FF, EFF, Temp, Rs, ... RshOptions and customizations:To reach the test requiements of double grid lines, three grid lines and 0 ...