Features: Strong anti-magnetic and anti-jamming function. Full function protection, anti high voltage circuit design. High voltage and short circuit input alarm. Large backlit LCD display, easy to read. Unit symbol display, easy to use. Accurate and reliable, wide test range. Insulation test voltages: DC 250V/500V/1000V, 750V AC Voltage. Package Includes: 1X Digital Insulation Resistance Tester Specifications: Material: Plastic Size: 176x116x63mm/ 6.9x4.6x2.5 in Special function VC60B+ Continuity alarm Less than 3010 Low battery indication Less than approx.7.5V Data hold LCD backlight Approx.10Sec. Function protection Input impedance 1M Sampling rate 3 times/Sec. AC frequency response 50-200Hz Operation mode Manual range Max.display 1999 note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-88471 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it