1. Welcome to our store! 2. The digital insulation resistance tester is made of high-quality ABS material, durable and provides precise measurements. 3. With an LCD screen, the measurement range can reach up to 1999MΩ, and the sampling speed can reach 2.3 times per second. 4. The entire machine is elegant and high-end, with stable performance, compact structure, and lightweight design for easy portability. 5. This resistance meter is suitable for maintenance, testing, and inspection of various electrical equipment. It is your ideal electrical and electronic tester. 6. This product is suitable for measuring insulation resistance of various insulation materials and electrical equipment such as motors, cables, switches, and electrical appliances. Product Type: Resistance Tester Model: BM500A Material: ABS Power Supply: 1 x 6F22 9V (battery not included) Application: Digital Electrical Tester Automatic Range: Overload display "1" Display Mode: LCD screen Maximum Display: 1999 Sampling Frequency: 2.5 times/sec Operating Environment: 0°C-40°C, less than 75%RH Storage Environment: -10°C-60°C, less than 80%RH