the model 3131a offers unmatched performance, and feature including test lead resistance zero adjustment for time-saving continuous operation, a clear ease to read illuminated scale, and a live circuit warning.
• test insulation up to 100mω at 250v, 200mω at 500v, 400mω at 1000v and continuity up to 20ω. • live circuit warning lamp plus audible warning. • automatic discharge of circuit capacitance when test button is released. • fuse protected (continuity range only). • battery check led. • front panel zero adjust. • back light function to facilitate working at dimly lit situations. • press to test button with lock down feature.