... cascading structure, modular design, the link between layers needle type. So equipment is small in size, light weight, high ... .7kgMain technical data HZ-5018 handheld digital frequency level meter Frequency rangeBroadband measurement:200Hz~1700kHz(balance 600Ω,200Hz~620kHz) ... B=1.74kHz -70dB~+50dB Level displayLCDgraphic display,Menu type operation,Level have digitaland analog stick two kind of ...