The SP200 is a 3.5-digit Backlit LCD Voltmeter features a 200mVDC measurement range with auto-zero and auto-polarity. Decimal points are user selectable. The SP200 features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. LED backlighting ensures excellent readability under low light conditions. The design of the panel meter's housing ensures splash-proofing using the supplied seal.