5 Functions 16 ranges High sensitivity and accuracy Confirms to the EN61010/IEC1010 standard CAT II 300V DC Voltage:0-2.5/10/50V (20KΩ/V) ±3%f.s 250/500V (20KΩ/V) ±4%f.s AC Voltage:0-50/250V/500V(4KΩ/V) ±4%f.s DC Current:0-50μ/5m/500m ±3%f.s Resistance:Rx1/Rx10/Rx100/Rx1K/Rx10KΩ± 5% full arc Decibel:-10-36dB(0dB/0.775V 1mW 600Ω) Power source:9V(6F22)*1,1.5V(UM3)*2 Fuse:0.5A/250V 5*20mm fast acting Size:150*90*50mm(Including holster) Weihgt:290g(Including holster)