... with 28/26dB dynamice range. OTDR WY-8000The WY-8000 is a high performance mini-OTDR, which is small ... a long battery operation life. With WY-8000, you can measure unit/connection/transmission loss and locate faults or breaks ... 8 hours continuous working timeMax. pulse width10µsDimensions258mmx145mmx70mmWeight1.8KgStandard PackageWY-8000 OTDR, Li battery, Charger, Manual Instruction, Carry caseOptional ...