6 Functions 16 ranges Confirms to the EN61010/IEC1010 standard CAT II 300V DC Voltage:0-2.5/10/50/250/500V (5KΩ/V) ±5%f.s AC Voltage:0-10/50/500V(2KΩ/V) ±5%f.s DC Current:0-0.5m/10m/250mA ±5%f.s Resistance:R*10/R*1KΩ ±5% full arc Battery test:1.5V(110mA)/9V(9mA) Decibel:-10~+22dB(0dB/0.775V 1mW 600Ω) Power source:1.5V(UM3)*1 Fuse:0.5A/250V 5*20mm fast acting Size:140*66*45mm(Including holster) Weihgt:185g