Product Description: Quantity: one set DC Voltage 0~0.1~0.25~2.5~10~50~250~1KV 20K/V 3.0 AC voltage 0~10~50~250~1KV 9K/V 3.0 DC current 0~50A~2.5~25~250mA 4.0 Resistance 1~10 ~100~1K~100K Arc Length 3.0 Audio Level -10~+22dB Weight 90g Diode (LI) 0~150A~1.5~15~150mA Protection function 0.5A fuse Operating environment 0~40C, 25%~80% RH Dimension 14810035mm DC voltage range: 0 - 10 - 50 - 250 - 1000V; AC voltage range: 0 - 10 - 50 - 250 - 1000V; DC current range: 0 - 0.5 - 50 - 500mA; Ohmmeter: x10, x100, x1K; Decibels: -20dB to +22dB on AC voltage ranges Manual range dial makes it easy to select a range for measuring current, voltage, and resistance. Use it to safely and accurately troubleshoot automotive and household electrical problems Power: 1 AA battery (not included) Including a set of electrical test leads, helps provide safe and accurate test results on electrical power measurements It is a handy tool for electricians, electrical engineering students, hobbyists and general home use. Can be used in factories, miners, schools, households and electrical maintenance