... .5 digit LED display 4.display range 0.0001~19999 DE4 Digital DC Voltmeter with RS485 in industrial fieldMain Features:1 ... :AC/DC 90~260V How to get the price for DE4 Model : • You can order single item as sample.• 1 year ... warranty.• OEM Service. DE4 Digital DC Voltmeter with RS485 in industrial field