Quantic PMI Model TD-1G12G-20DB-SFP is a threshold detector designed to operate over the 1 to 12 GHz frequency range with an adjustable threshold level of -25 to -5 dBm and a VSWR of 2.0:1 maximum. This unit's housing measures 1.0" x 0.62" x 0.22" with field removable SMA connectors.