ANENG M20 Digital Multimeter 6000 Counts Tester Esr Meter Multimetro Analogico Digital Profissional With Backlight AC/DC Ammeter Feature1. General characteristics1-1.Display, liquid crystal display (LCD);1-2.Maximum display:6000 (3 9/10) bits automatic polarity display;1-3.Measurement: double integral A / D conversion;1-4.Sampling rate: about 3 times per second;1-5.Overrange display: the most significant bit was "0L";1-6.Low voltage display: symbol appears;1-7.Working environment:(040),relative humidity80%;1-8.Power supply: AAA 1.5V battery(not included );1-9.Volume (size):1427032mm(LWH);