Product Name: Insulation/Continuity Tester GT5307A Short Description: The GT5307A Insulation/Continuity Tester applies a DC voltage converter with low loss, high variation ratio, and inductive energy storage, which can convert 9V voltage to 250V/1000V DC voltage. It applies a digital electric bridge to measure insulation resistance. This instrument has functional characteristics of portability, a wide measuring range, backlight display, and data holding. It can measure electric supply as well. When using straps, the operator can operate the instrument with both hands. The instrument has a fashionable appearance and stable performance. It is suitable for measuring electrical machinery, cable, electromechanical equipment, telecom equipment, electric power facilities, and other insulation resistance. Features: Insulation Resistance Measurement Alternating Current (AC) Measurement Direct Current (DC) Measurement Small Resistance Measurement Measured Data Holding Low Battery Indication Large LCD digital display External Direct Current (DC) power supply DC9V 1.5A Over-limit Alarm Red Alarm Light, Buzzer Alarm High Voltage Alarm Specifications: Insulation Resistance Measurement Range: [insert range] AC Voltage Measurement Range: [insert range] DC Voltage Measurement Range: [insert range] Small Resistance Measurement Range: [insert range] Power Supply: DC9V 1.5A Display: Large LCD digital display Dimensions: [insert dimensions] Weight: [insert weight] Applications: This instrument is suitable for measuring electrical machinery, cables, electromechanical equipment, telecom equipment, electric power facilities, and other insulation resistance. Accessories: Main Unit Red high voltage test wire Green test wire Black test wire Alligator clip x 2 1.5V LR14 alkaline battery x 8 User's manual Soft-bag Certification: This product meets all necessary industry standards and certifications for safety and performance.