Request InfoTerahertz Technologies Inc.The pocket-size FPM-250 fiber optic power meter has been released by Terahertz Technologies Inc. It incorporates a 1-mm-diameter InGaAs detector that provides improved temperature stability at 1550 nm. The rugged device, which offers a measurement range of +5 to -75 dBm (+25 to -55 dBm for the CATV model), is equipped with a universal 2.5-mm ferrule adapter. 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