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The device functions as a temperature and humidity sensor for each freezer room. It transmits the measured data via wireless communication systems such as WiFi, 5G, or LoRa to a server for processing and displaying key parameters on a computer system. This allows system operators to monitor the data and issue control commands remotely via wireless communication.

The device functions as a DTMF (Dual-Tone Multi-Frequency) encoder and modulator, integrating the generated codes into RF signals within standard communication radio frequency bands. It is capable of generating DTMF codes ranging from 1 to 4 digits and transmitting over the frequency ranges of 136–174 MHz, 245–247 MHz, and 400–520 MHz. The transmission range spans approximately 2 to 15 kilometers. This device is designed to transmit DTMF codes for remote detonation initiation

The device functions as a DTMF (Dual-Tone Multi-Frequency) encoder and modulator, integrating the generated codes into RF signals within standard communication radio frequency bands. It is capable of generating DTMF codes ranging from 1 to 4 digits and transmitting over the frequency ranges of 136–174 MHz, 245–247 MHz, and 400–520 MHz. The transmission range spans approximately 500 to 1,000 meters. This device is designed to transmit DTMF codes for remote detonation initiatio