LED Digital Plug-in Voltmeter M9025

• 2 1/16" diameter
• Monitors system voltage from 8-18 volts in .1-volt increments.
• No installation required.
• Just push the unit into existing cigarette lighter or 12-volt accessory port.
• Microprocessor controlled for accuracy and dependability.
• Recalls highest voltage.
• Available in High Brightness Red.
• $59.95