"SEALED UNIT FOR HARSH ENVIRONMENTS, FULL -40 TO +85C OPERATION; RUGGED AND WEATHERPROOF SELFCONTAINED UNIT; SINGLE-SATELLITE TIMING MODE; PHYSICAL INTERFACE: RS-422; MOUNTING: 1""-14"" STRAIGHT THREAD OR 3/4"" PIPE THREAD; INGRESS PROTECTION: IP 67; +5 VDC* TO +36 VDC, REVERSE POLARITY PROTECTION; WEIGHT: 5.4 OZ (154 G); EMC:CE, FCC CLASS B"