Blue Sea Systems Mini OLED Voltmeter 1733200 - Compact Digital Voltage MonitorMonitor the DC voltage with ease using the Blue Sea Systems Mini OLED Voltmeter. This compact digital voltage monitor features a bright, waterproof, and daylight readable OLED screen, ensuring clear visibility in any condition.Features: Reverse polarity protected Mounts in a common 1-1/8" (29mm) hole Color: Blue Meter: Voltage Nominal Voltage: 12V DC/24V DC Resolution: 0.1 DC Cut Out Dimensions: 1-1/8" (28.58 mm) Input Voltage Range: 8V-36V DC Operating Current: 15mA Switching Cycles: 10,000 Weight: 0.20lb (0.09 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 Wikipedia.Learn More Voltmeter OLED DC Voltage