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In the standard configuration, the ERL-10 receives data from the EFM-100C Electric Field Monitor sensor. When lightning is detected, the relay module signals to the GSM-1 to send text messages to the cell phone numbers programmed into the GSM-1. Once lightning is no longer detected another message will transmit indicating an all clear status. Lightning alert distance thresholds, high electric field thresholds and time to All Clear are completely configurable.
A valid GSM SIM card with a text plan from a cell phone provider is required for operation.Includes:Inverted EFM-100 (pre-assembled ready to mount on pole)Pre-wired and tested DIN mounted GSM-1 / ERL-10 / EPM-1 (or EFA-21) modules