High Qulity Power Meter SpecificationWavelength850nm, 1300nm, 1310nm, 1550nmMeasurerange-45dBm~+25dBmUncertaindegree±5%(-10dBm, 20±3Differentiation0.1~1%(linearity), 0.01~0.001dB(log)Environment-20+50 4590%RHPower supplybattery:8.4Vfolding charge batter DC:12V, 150mADimension85mm(W) x32mm (D) x160mm (H)Weight0.35Kg