Feature:1. The digital insulation resistance tester is made of high quality ABS material, durable, and has accurate measurement results.2. With LCD display, the measurement range can arrive 1999M, and the sampling rate can arrive 2.3 times/sec.3. The whole machine is beautiful and high grade, with stable performance, compact structure, easy to carry, and can be measured at any time.4. This resistance meter is suitable for maintenance, test and inspection of various electrical equipment. Is your ideal electrical and electronic tester.5. This product is suitable for measuring the insulation resistance of various insulating materials and electrical equipment such as motors, cables, switches, electrical appliances, etc.Specification:Item Type: Resistance TesterModel: BM500AMaterial: ABSPower Supply: 1 x 6F22 9V (Battery Not Included)Application: Electricity numerical testAutomatic Range: Overload display "1"Display Mode: LCD displayMaximum Display: 1999Sampling Rate: 2.5 times/secWorking Environment: 0C-40C, less than 75%RHStorage Environment: -10C-60C, less than 80%RHRated Voltage250V/500V/1000VOpen Circuit Voltage90%~110% of rated voltageMeasuring Range0.001~1999MMinimum Resolution0.001MAccuracy250V: About 500k500V: About 1.5M1000V: About 5MMeasure the achievable resistance value to maintain the lower limit of the rated voltageNot less than 1.5mA.Package List:1 x Tester (Battery Not Included)2 x Clip1 x Test Lead1 x ManualNote:If the back cover of the meter is not in place, it is strictly forbidden to use it. Otherwise, it may cause electric shock.