The Lascar DPM 3AS-BL is an ultra-miniature 3 1/2 digit LCD voltmeter with 11 mm (0.43") digit height and LED backlighting. It features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. The meter plugs directly into a SIL socket or can be snapped into a panel. Connection to the meter is via two rows of pins. The Lascar DPM 3AS-BL is intended to replace The Lascar DPM 3, DPM 3S, DPM 3-BL and DPM 3S-BL in many applications, usually requiring only minor circuit modification