4-25V DC Voltage meter & ampere meter dual dispaly Feature: * Dark filter color piece * Certification ISO9001 & CE * Easy to read under the high light( sunshine) * more than 70000 hours Longlife * High quality components( LSI) and high stability * 70-80% components from internaitonal well know manufacturers * Easy to use high accuracy Specifications: Display high-lighted 9mm Green/ Red Reading of The first line is LED green 999( 3digit) Reading of The second line is LED red 1999( 4digit) Operating temperature: 0~ 55° C Power supply DC 4-25V DC The position of decimal point can be set arbitrarily by the outer wire. Auto zero-setting Auto polarity changing Sample Frequency 400ms Dimension( W) 44.30mm X ( L) 55mm X ( D) 11.18mm The weight of one unit: 20-25g/ unit 17 years of export experience and 13 years experience cooperation with Panasonic on digital panle meter !