S-USB-2COM S-USB-2COM Dual USB - to - Serial adapter $47.95 | MS8209 MS8209 5 in 1 Meter: Sound Level, Brightness (Lux), Thermometer, Humidity Meter, $79.95 | GBU668**S GBU668**S (GBU668--S) Base Rack for S2E,8 I/O Slots/ Expansion Rack for S2T/S2, $320.00 |
TRO108M-S TRO108M-S 8 Outputs Relay, Mounts on side of T1-16S. $175.00 |