Inline freezing & defrosting sensors


The CALLIFREEZE® is specifically designed to measure the LOF of individual products such as meat products, fish, vegetables, etc. This sensor has shown its importance in the market by winning the innovation price of CFIA EXPO 2019 in Rennes, France!


CALLIFREEZE  inline sensor


The MICROFREEZE® is used to evaluate the level-of-frozenness (LOF) of large blocks of food products (e.g. blocks of meat) or layers of products (e.g. French fries). The MICROFREEZE® can easily handle layered products with layer thicknesses up to 50 cm. This makes our sensor ideal for monitoring bulk products such as French fries, vegetables, fruits, etc.


Level-of-Frozenness (LOF)70 – 100%*
Range depends on the product
0 – 100%*
Range depends on the product
Emitted electromagnetic power~10 dBm~10 dBm
Frequency bands61.25 GHz
Non-ionizing and non-destructive
2.4 – 2.5 GHz and 5.725 – 5.875 GHz
Non-ionizing and non-destructive
Sensor’s spot size @ product~2 cm~15 cm
Power inputAC Single Phase 100-240V~ 0.5A 50-60 HzAC Single Phase 100-240V~ 0.5A 50-60 Hz
Operational temperature range-40 °C … 40 °C-40 °C … 40 °C
HousingStainless steel AISI 304 – Hygienic designStainless steel AISI 304 – Hygienic design
IP classIP66IP66
Dimensions receiver – transmitter unit (W x H x D)177 mm x 187 mm x 178 mm177 mm x 187 mm x 178 mm
Dimensions computing unit (W x H x D)327 mm x 457 mm x 179 mm390 mm x 576 mm x 267 mm
EthernetRJ45 plugRJ45 plug
Industrial interfaceModbus TCP/IP serverModbus TCP/IP server
Web-server based user interfaceRemote interaction with the sensor via a browserRemote interaction with the sensor via a browser
DHCP clientAutomatic negotiation of IP addressAutomatic negotiation of IP address
Capacity of LOF calculations10 LOF values per second1 – 500 LOF values per second

AI-powered sensors

Artificial Intelligence and Web Interface

The acquired sensor data are fed to our AI-algorithms which provides reliable process information about the freezing and defrosting processes. Depending on the application, our sensors can be combined with other sensing modalities to provide a complete image of the process.
The web interface is used to visualize the processed data and manage the device settings for different products. The software supports Modbus TCP/IP direct communication with PLC units for automatic process control.

Level Of Frozenness certificate

To meet the increasing demands for quality reporting and traceability of products, our system automatically generates quality reports of all processed data. The report gives an overview of the evaluated products and their respective Level Of Frozenness (LOF) values. Since the products are scanned inline, the quality of every product or batch is checked. The products which are sufficiently frozen, receive the level-of-frozenness certificate to confirm the highest quality standards. This confirmation will enhance the trust of your customers in your freezing processes.

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