VC60B+ Megohmmeter Sound Light Alarm Short Circuit Automatic Reset Portable Small MultiFunction Insulation Resistance Tester Item Type: Resistance Tester Model: VC60B+ Material: ABS Power Supply: 6xAA 1.5V Battery / External DC 9V Adapter Power Supply (Battery Not Included) Purpose: It is suitable for resistance test. Range Accuracy Testing Voltage 250V 500V 1000V 200MΩ ±(4.0%+2) ±(4.0%+2) 2GΩ ±(4.0%+2) 2kΩ ±(0.8%+6) DC 1000V ±(0.5%+6) AC 750V ±(1.0%+6) Special Function VC60B+ On-Off Alarm Less Than 50Ω±10Ω Low Voltage Display About Less Than 7.5V Data Retention √ Backlit Display About 10 Seconds Functional Protection √ Input Resistance 10MΩ Sampling Rate 3 Times/Sec AC Frequency Response 50-200Hz Operation Method Manual Range Maximum Display 1999 LCD Size 75×52mm Power Supply 6 1.5V "AA" Batteries/External DC 9V Adapter Power Supply Power Consumption Quiescent Current about 3mA