Southwest Microwave Model 310B Long Range Microwave Intrusion LinkCondition:* New Stock, In OEM Packaging. As Pictured.Additional Notes:* Range: 100-1,500 feet (30-457m)* Beam Diameter: 2-40 feet (0.6-12.2m), depending on link length and sensitivity setting* Target Velocity: 0.1 – 50 ft/sec (3 – 15m/sec)* False Alarm Rate: 1/unit/year based on signal to noise ratio* Probability of Detection: 0.99 minimum* Self Supervision (Alarm on Failure): Fully self-supervised* Automatic Range Adjustment: Link automatically adjusts to slow changes in path loss due to rain, snow, etc. AGC range – 54 dB* Transmitter Output Power: 4mW peak, 2mW average, square wave modulated* Carrier Frequency: K-Band (24.125 GHz 50MHz)* Modulation Frequency: 3.0, 4.5, 7.5, 10.5 kHz 3% – field selectable* Voltage: 11 to 14 Volt DC* Current: 310BT – 150 mA maximum 310BR – 20 mA maximum* Fuses: 310BT – 0.5 amp 310BR – 0.25 ampSouthwest Microwave310B