DATELs DMS-20PC-DCM Series of self-powered, negative-reading, dc voltage monitors are great replacements for older, hard-to-read, analog meters. Simply connect a negative voltage across the rear terminals and the meters are fully operational! Negative-input DCMs can be easily combined with positive reading DMS-20PC-DCMs for monitoring dual-polarity power supplies.

FEATUREs
• Self-powered, only two connections required
• –4.5 to –20Vdc, –18 to –50Vdc, and –30 to –264Vdc models
• Can be used with positve-reading DMS-20PC-DCMs
• Ultra-low power consumption (8mA typ.)
• 0.37"/9.4mm high, bright red, LED displays
• Subminiature 1.38" x 0.88" x 1.0" packages