The LB-524T4 GSM temperature recorder is a small, wireless, portable, battery-operated thermometer equipped with 4 external temperature sensors. The recorder measures and records 4 temperatures in memory. Every established period, the LB-524T4 recorder switches on the built-in GSM / GPRS module, connects to the server and transmits the last collected measurements to the external database. In case of interruptions in GSM communication, the measurements are collected by the recorder memory and sent after re-establishing communication with the database.
For each measurement in the GSM LB-524T4 recorder, alarm thresholds are set, exceeding which it activates an additional connection with the database and sends alarm SMS-es to pre-programmed cell phone numbers. The cause of the alarm may also be switching off the external power supply of the recorder, thanks to which it can be used to signal the power outage of devices, eg refrigerators for storing vaccines in Hospitals or Health Department.