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FrideMON is a wireless sensor solution developed for temperature and door activity monitoring of industrial refrigerators. It measures the temperature inside the refrigerator and detects & counts door opening / closing events.

FridgeMON-101 transmits the measured values ​​wirelessly with Bluetooth Low Energy technology, as a BLE beacon.

With its sensitive magnetic field sensor, FrigeMON detects door openings precisely than conventional reed type mechanical switches, providing an easier and more convenient mounting, immune to alignment errors.

Product Brochure


28 April 2023



About Us

Since 2010,  we, as Letta Group, are providing innovative products and solutions, design, prototyping, and manufacturing services on electronics, embedded systems and Internet-of-Things.

We are offering products and solutions in the fields of ATM technologies, smart electronic locks, IoT, Industry 4.0 applications and network technologies.  We are also providing product development,design, prototyping and manufacturing services.