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TellSystem / ASC EXP Relay3Relay expansion panel for Pro series GSM transmitters, 3 NO / NC outputs.Security systems / Communicators, GSM / TellSystem accessoriesEnd user price - Reseller price- 3 NO/NC contact relay outputs. - Load capacity: 50VDC/1A. - Compatible with Pro series GSM transmitters. - It can be controlled by SMS or a toll-free call. - The output can be bistable or monostable. - Independently controllable outputs. |