Trumeter 731 Series Low Power DC Hour Meters are electromechanical, quartz-controlled meters for high reliability and accuracy. The DC hour meters feature a 0.01% accuracy rating with various voltage inputs. The 731 series provides a 7-figure display within an IP65-rated black polymer case material. The Trumeter 731 Series Low Power DC Hour Meters are available in three standard industry housings, including two-hole rectangular, flush round, and flush rectangular. The meters operate with a 0.4W DC power rating and a 10VDC to 28VDC voltage range. The 731 series are non-reset meters and CE compliant, UKCA, and UL/cUL recognized for DC. The meters are ideal for applications requiring office, test, and medical equipment.