Takes up to 64 behaviour statements. Supports DTMF and GPRS features. Expandable upto a maximum of 22 inputs and 22 outputs. It is configurable via USB, using SmartSetup software (free). GPRS Features allow this model to be configured remotely using the Airdrive platform.
| Code | Description |
| GC0641-BOX | Base unit, 500mA PSU, USB Cable, Antenna and SmartSetup Software CD |
| GC0641-COMBO | Base unit, IO Expansion (GX0505), 500mA PSU, USB Cable, Antenna and SmartSetup Software CD |
| GC0641-OEM | Only the base unit (no cables, no CDs, no PSU, nothing but the base unit) |
| GC0641-RTM-HC | GC0321 Based House Commander. See the House Commander section for more info. |
Takes up to 128 behaviour statements Supports DTM, GPRS and dual SIMcards (network redundancy). Expandable up to a maximum of 32 inputs and 32 outputs. It is configurable via USB, using SmartSetup software (free). GPRS Features allow this model to be configured remotely using the Airdrive platform.