1732200 Mini OLED Ammeter - BlueMonitors essential electrical system parameters on a bright, waterproof, daylight readable OLED screen.Features:. Compact size enables mounting in any convenient location. Reverse polarity protected. Mounts in a common 1-1/8 in hole. Convenient amperage monitoring. Monitors -100A to 100A DC. Positive or negative side wiring. Color: Blue. Meter: Current. Nominal Voltage: 12V DC/24V DC. Resolution: 0.1A. Intermittent Rating: 110A. Cranking Rating 30 Sec: 175A. Input Voltage Range: 8V-36V DC. Operating Current: 15mA. Switching Cycles: 10,000. Weight: 0.70lb (0.32 kg). WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.