PMI Model No. ADA-0520F-65-OPT6G18G-PTB is a Portable Adjustable Threshold Detector operating over the 6.0 to 18.0 frequency range. It has a maximum threshold variation of ±1.5 dB; a power input of +10 dBm; Minimum Signal Level for Threshold Setting -45 dBm ± 2.5 dB; Threshold Variation (Flatness) ±1.5 dB Max; Output Level Detected 0 V & 2.5 V Min. under 50 Ohms (TTL); Output Stability ±3.0 dB (Between -50 °C to +85 °C); and AC Voltage Supply: 220 to 230 VAC. This model has SMA female connector and a BNC female connector in a housing that measures 4.92" x 4.92" x 2.26".