H Hanna Instruments διαθέτει ένα τεμάχιο ΗΙ504903 GSM Supervisor στην ενδεικτική τιμή των 150,00 Ευρώ έναντι των 400,00 Ευρώ που είναι η αξία του (οι τιμές δεν συμπεριλαμβάνουν ΦΠΑ).
Μερικά από τα βασικά χαρακτηριστικά του είναι:
• GSM phone inside for Short Messaging Service (SMS) sending.
• Possibility of a wireless remote interface configuration or connection to a computer workstation (equipped with a modem) through the cellular phone inside.
• RS232 auxiliary port (PC config) for configuration or connection purpose with a local computer
• RS485 port
• Digital input port (typically connected to an alarm relay) to acquire information from “non-intelligent” instruments.
• Digital output port, for which it is possible to change the status (open/closed) through an appropriate SMS sent to the interface.
• SMS enabling/disabling option through a dedicated port.
• LED indicators
• Real time clock.
• Diagnostic features.
• Internal backup battery which provides power supply in case of mains power failure.
Για περισσότερες λεπτομέρειες:
