Meco -3690 auto auto & manual 600a ac dc, frequency,3 digit, 3999 counts models : 3690auto, auto manual 600a ac dc, frequency 3 digit 3999 counts, data hold, audible continuity, d zero button (for dca), apo ac current 400a, 600a ac voltage 4v, 40v, 400v, 600v dc current 400a, 600a dc voltage 400mv, 4v, 40v, 400v, 600v resistance 400, 4k, 40k, 400k, 4m, 40m frequency 100hz, 1khz, 10khz,100khz, 500khz sp. Functions data hold, audible continuity, diode test, apo jaw opening cable dia. 30mm max. 1. Speclficatlons 1. Speclficatlons 1.1 general specifications 1.1 general specifications display 3 digit liquit crystal display (lcd) max reading 3999 counts polarity automatic, positive implied, (-) negative polarity indication zero adjustment automatic over range indication ol or -ol low battery \x9d mark turns on. Sample rate 3 times per second, nominal operating conditions o0c to 500c at > 75% rh (noncondensing) storage conditions -200c to 600c, 80% rh with battery removed accuracy accuracy specification at 270c ± 50c less than 75% rh. Power supply two 1.5 v aaa size battery battery life 150 hours typical with carbon zinc dimensions 215 x 80 x 40 mm (approx.) weight 280gms including battery (approx.) accessories pair of test leads x 1, 1.5v aaa battery (installed) x 2, instruction manual x 1, carrying case x 1 max. Jaw opening 30mm 1.2 electrical specification 1.2 electrical specification 1.2 electrical specification dc current : (auto ranging) dc current : (auto ranging) dc current : (auto ranging) range accuracy accuracy overload protection 400a ± (1.5% rdg ± 5 dgts) ± (1.5% rdg ± 5 dgts) 600a dc max. For 1 minute 600a ± (2.0% rdg ± 5 dgts) ± (2.0% rdg ± 5 dgts) 600a dc max. For 1 minute ac current : (auto ranging) ac current : (auto ranging) ac current : (auto ranging) range accuracy accuracy overload protection 400a 50 - 60hz 40 - 500hz 600a ac max. For 1 minute. 600a ± (1.75% rdg ± 5 dgts) ± (3.5% rdg ± 5 dgts) 600a ac max. For 1 minute.