Submersible LoRaWAN sensors that keep Frey’s Foods’ on-site water tanks topped up, so a plant of more than 2,000 staff never runs dry.
First Digital IoT
FDX - Custom Electronics
Methodology
Practice
More than 2,000 staff at Frey’s Foods depend on a reliable water supply, both for production and for strict hygiene standards. The plant keeps large on-site tanks as a backup against unreliable municipal water, and those tanks have to stay topped up.
We designed a custom monitoring solution using IP-rated, fully submersible LoRaWAN devices, chosen for their accuracy and their ability to connect wirelessly over long distances. Each device has a two-year battery and a water- and chemical-proof enclosure, and sends readings to an Azure-hosted InfluxDB every 30 minutes over a LoRaWAN network, with a local repeater service to carry the signal. Configurable Grafana reports show the data, and an event-driven design raises critical events so the top-up process starts automatically or warns of a possible shortage before it stops production.
Frey’s now has a reliable, low-maintenance way to keep its water tanks topped up automatically. The long-range wireless design suits a large plant, and staff set their own rules and limits and get notified through a secure web interface.
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