• Auto Calibration on Start-up
• Onboard Battery Charger
• Mains Power: 90-260Vac, 45-65 Hz
• Hazardous Voltage Warning Icon > 70 volts
• Test:v Insulation, Voltage & Frequency
• Calibration Certificate, Dated

The Greenlee 5990A-C is a megohmmeter designed for precise insulation testing in various applications. With its auto calibration feature on start-up, it ensures accurate readings every time you use it. The onboard battery charger provides convenience, allowing for quick recharges and minimizing downtime. This megohmmeter operates on mains power ranging from 90-260 Vac and 45-65 Hz, making it versatile for different environments. Safety is a priority, as indicated by the hazardous voltage warning icon that alerts users to voltages exceeding 70 volts. The device is capable of testing insulation, voltage, and frequency, providing comprehensive data for your projects. The unit comes with a dated calibration certificate, ensuring that you have a verified tool for all your testing needs.