... DC Voltmeter Standard Features1. 0.2, 2, 20, 200, 600V DC voltage ranges2. 20, 200 mA and 2, 5A DC current ranges3. All ranges factory ... calibrated4. 3-1/2 digit resolution to 1,999 for ... : 0~50, 0~80% RHOptions1. LED display colors: Blue, Red;2. Customizing ranges available by users personally according enclosed manual 0 ...