17B+ digital multimeter. 15B+ digital multimeter. 15B+/17B+ high precision temperature frequency auto multifunction digital multimeter for Mobile Phone repair. Product Features: Faster response Greater capacitance range: 0.01nF ~ 1000 The more bright: Add white LED backlight Larger screen: Larger than the original 1.5 times Product Specification: Maximum Voltage between any Terminal and Earth Ground: 1000 V Display(LCD): 4000 counts,updates 3/sec Battery Type: 2 AA,NEDA 15A, IEC LR6 Battery life: 500 hours minimum(50 hours in LED Test mode without load. The hours with load depends on the type - of LED under test) Operating Temperature: 0 deg to 40 deg Storage Temperature: 30 deg to 60 deg Operating Humidity: Non-condensing 90% 10deg to 30deg; 75% at 30deg to 40deg