GRO662S*S GRO662S*S (GRO662S-S) Relay Output Module, 8 points (isolated), 240 Vac/24Vdc (m $290.00 | S-USB-2COM S-USB-2COM Dual USB - to - Serial adapter $47.95 | TKRS232 TKRS232 Programming Cable, Connects V2000 T2/T3 Programming Port to Computer RS2 $79.00 |