Lascar DPM 600 Series 3.5 Digit LCD Panel Meters – Lascar DPM 600S, A high performance LCD panel meter that has an ultra-low profile. The meter is pin for pin compatible with many existing DPMs. A very low current consumption gives a long battery life and, together with the compact size, makes this meter suitable for portable equipment. The single rail version has a built-in negative rail generator, enabling the meter to measure a signal referenced to its own power supply 0V. Lascar DPM 600S 3.5 Digit LCD Voltmeter