Polygon Technologies - Expansion Units (GSM & Telemetry): GX0505
Add-On Expansion Units for GSM Commander products.
5 x Input 5 x Output Expansion unit.
Polygon Technologies - Expansion Units (GSM & Telemetry): GX1000
Add-On Expansion Units for GSM Commander products.
10 x Input Expansion unit.
Polygon Technologies - Expansion Units (GSM & Telemetry): GX1000DCL
Add-On Expansion Units for GSM Commander products.
10 x Input Low power Expansion unit (Dry contacts only).
Polygon Technologies - Expansion Units (GSM & Telemetry): GXS081A
Add-On Expansion Units for GSM Commander products.
8 x input Analog expansion 4-20mA / 0-30v (Serial interface)
