| # | Part Number | Description | Manufacturer |
|---|---|---|---|
| 1 | MA-MT-275MU | MTRAK M275 MESSAGE UNIT | Digi International |
| 2 | 2950967 | EMG45-RELS/IR1Relay Socket DIN Rail | Phoenix Contact |
| 3 | 2-1415899-4 | RZ03-1C4-D048Relay Coil | TE Connectivity Potter & Brumfield Relays |
| 4 | G2RK-2-DC24 | RELAY GEN PURPOSE DPDT 3A 24VGeneral Purpose Relay DPDT (2 Form C) 24VDC Coil Through Hole | Omron Electronics Inc-EMC Div |
| 5 | DSP2A-L2-DC3V | RELAY GENERAL PURPOSE DPST 5A 3VGeneral Purpose Relay DPST-NO (2 Form A) 3VDC Coil Through Hole | Panasonic Electric Works |
| 6 | ARS14Y12 | RELAY RF SPDT 500MA 12V | Panasonic Electric Works |
| 7 | 2904-12-321 | RELAY RF SPST 500MA 12V | Coto Technology |
| 8 | V23134A1052C643 | RELAY AUTOMOTIVE SPDT 40A 12V | TE Connectivity Potter & Brumfield Relays |
| 9 | G8JN-1C7T-D-DC12 | RELAY AUTOMOTIVE SPDT 35A 12V | Omron Electronics Inc-EMC Div |