HANNA HI 504901-1 GSM Monitor USA, HI504901

HANNA HI 504901-1 GSM Monitor USA, HI504901

HI 504901 is an intelligent interface between HANNA instruments meters with RS232 or RS485 port, and a GSM cellular phone or a local or remote computer with HI 92500 HANNA instruments software.

HI 504901 can acquire information about active alarms, errors, current status and real time values through two RS232 serial ports with the HI 8000 series, or through the RS485 port with the HI 504, HI 23, HI 24, HI 700 and HI 710 series, with the HI 504910 transmitter.

HI 504901 is also provided with one digital input (typically an alarm relay) from "non-intelligent" instruments, with only an alarm relay contact or another digital output signal.

Moreover, the interface features one digital output and an input for enabling/disabling the SMS sending function.

LED indicators advise the users of error conditions, active alarms, signal coverage for cellular module, digital output and cellular module status. HI 504901 can be completely configured through the HI 504901SW software provided with instrument. Other important characteristics of the interface are the real time clock, self-diagnostic capabilities and internal backup battery which provides power supply and cause an alarm SMS sending in case of power failure.