A transmitter comprising: a housing comprising: a first compartment; a second compartment; a bulkhead separating the first and second compartments (16, 20) in the housing; and an opening in the bulkhead between the first and second compartments (16, 20); and a seal board comprising: a circuit board comprising: a first side; a second side; a perimeter; and a plurality of vias; a plurality of conductor pins; and a plurality of solder joints that connect and seal each conductor pin to a single via such that each conductor pin extends through the via and extends from the first side of the circuit board and the second side of the circuit board, wherein the seal board covers the opening in the bulkhead, and seals the second compartment from the first compartment, the seal board further comprising: the first side of the circuit board facing the first compartment, and the second side facing the second compartment, each conductor pin having a first end extending from the first side of the circuit board into the first compartment and a second end extending from the second side of the circuit board into the second compartment; and wherein each conductor pin extends through the via and provides an electrical path between the first and second compartments (16, 20), characterized in that the transmitter further comprises an adapter fitting adjacent the first side of the circuit board for guiding the first ends of the conductor pins into engagement with a component housed within the first compartment. a first compartment; a second compartment; a bulkhead separating the first and second compartments (16, 20) in the housing; and an opening in the bulkhead between the first and second compartments (16, 20); and a seal board comprising: a circuit board comprising: a first side; a second side; a perimeter; and a plurality of vias; a plurality of conductor pins; and a plurality of solder joints that connect and seal each conductor pin to a single via such that each conductor pin extends through the via and extends from the first side of the circuit board and the second side of the circuit board, wherein the seal board covers the opening in the bulkhead, and seals the second compartment from the first compartment, the seal board further comprising: the first side of the circuit board facing the first compartment, and the second side facing the second compartment, each conductor pin having a first end extending from the first side of the circuit board into the first compartment and a second end extending from the second side of the circuit board into the second compartment; and wherein each conductor pin extends through the via and provides an electrical path between the first and second compartments (16, 20), characterized in that the transmitter further comprises an adapter fitting adjacent the first side of the circuit board for guiding the first ends of the conductor pins into engagement with a component housed within the first compartment. a first side; a second side; a perimeter; and a plurality of vias; a plurality of conductor pins; and a plurality of solder joints that connect and seal each conductor pin to a single via such that each conductor pin extends through the via and extends from the first side of the circuit board and the second side of the circuit board, wherein the seal board covers the opening in the bulkhead, and seals the second compartment from the first compartment, the seal board further comprising: the first side of the circuit board facing the first compartment, and the second side facing the second compartment, each conductor pin having a first end extending from the first side of the circuit board into the first compartment and a second end extending from the second side of the circuit board into the second compartment; and wherein each conductor pin extends through the via and provides an electrical path between the first and second compartments (16, 20), characterized in that the transmitter further comprises an adapter fitting adjacent the first side of the circuit board for guiding the first ends of the conductor pins into engagement with a component housed within the first compartment. the first side of the circuit board facing the first compartment, and the second side facing the second compartment, each conductor pin having a first end extending from the first side of the circuit board into the first compartment and a second end extending from the second side of the circuit board into the second compartment; and wherein each conductor pin extends through the via and provides an electrical path between the first and second compartments (16, 20), characterized in that the transmitter further comprises an adapter fitting adjacent the first side of the circuit board for guiding the first ends of the conductor pins into engagement with a component housed within the first compartment.