Campbell Scientific offers three types of modems for telephone communication. Rugged land-line modems are ideal for field use. Digital cellular modems provide an alternative for mobile applications or locations where ordinary phone lines are not a practical option. Voice-synthesized modems enable users to access their data via voice or to send their data to a computer.
Telephone communication links require a Campbell Scientific field modem at the datalogger site and a Hayes-compatible modem at the calling end. Surge protection is strongly recommended if not provided...read more
Cellular communication is a convenient alternative for mobile applications or for locations where ordinary phone lines are not established. Cellular communication is advantageous over RF systems becau...read more