Refrigerator and freezer temperature monitoring

The Agrinovo refrigerator monitoring system puts a stainless temperature probe in each fridge and freezer, wires it to a controller on the wall beside them, and sends an alert when a cabinet stays out of its range longer than you allow.

Why a paper log misses the failures that happen overnight

In most kitchens and shops someone reads a thermometer at opening and at closing and writes the number on a sheet taped to the door. Between those two rounds nobody sees the cabinet, and a failure in those hours is found only at the next round: overnight, over a weekend or on a holiday. A probe that reports around the clock closes that gap, and its readings become the record.

A compressor that stops after closing raises an alert that night

Without monitoring, a fridge that fails at two in the morning is found when the kitchen opens, and the stock inside is thrown away. With a probe in the cabinet the alert goes out while there is still time to move the goods to another fridge or call a technician. The history then shows when the rise began and how fast the temperature climbed.

Defrost cycles and door openings stay within the time you allow

A freezer warms for a few minutes during its automatic defrost, and a display fridge warms each time a customer opens it. For each cabinet you set how long it may stay out of range before an alert goes out, so these routine rises trigger nothing, while a rise that outlasts that time is treated as a fault and triggers the alert.

One controller watches up to four cabinets

The freezer, the prep fridge and two display fridges in the same kitchen each get a probe, and the four probes connect to one Omni Genesis, one probe per port. Each cabinet keeps its own name, range and history on the dashboard.

Complete systems for this application

We connect the sensors to the controller and configure the dashboard and alerts before the system ships.

Cold room and refrigerator monitoring

Temperature readings from each fridge, freezer or cold room, an alert when one leaves its range, and a stored record for inspections.

What you get

  • Sensors: Temperature, and humidity where it matters, with the probe chosen for your range, from display fridge to freezer.
Controller:
Omni Genesis Lite for one fridge, Omni Genesis for up to four points, Omni Exodus or expansion for more.
Alerts:
A reading out of range for longer than the time you allow (a normal defrost cycle does not trigger one), and a disconnected probe.
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What we do before and after delivery

  • We connect the sensors to the controller and register them before shipping.
  • We set up the dashboard and configure the alerts with you in the cloud. You can change them at any time.
  • The cloud subscription is included, with a cellular SIM on 4G controllers.
  • After delivery we hold a remote onboarding call. In Israel we also install on site.

Omni Genesis Lite takes one sensor, Omni Genesis four and Omni Exodus six. Expansion adds more. For anything not listed here, tell us what you need to measure and we will put the system together.

How refrigerator temperature monitoring is installed

  1. A probe inside each cabinet

    A sealed stainless temperature probe (IP68) goes inside the cabinet, and its thin cable runs out along the door gasket without damaging it. It reads from -55 to +125°C, so the same probe fits a deep freezer and a display fridge. Where humidity matters as well, a temperature and humidity sensor takes its place.

  2. The controller on the wall beside the fridges

    The Omni Genesis hangs outside the cabinets, within cable reach of them, and takes up to four probes. It plugs into an ordinary socket through a power adapter, so no electrician is needed.

  3. A range and an allowed time for each cabinet

    On the dashboard each probe gets a name, a minimum, a maximum and the time it may stay out of range: below -18°C for a freezer, 0 to 4°C for a dairy fridge, up to 5°C for a display fridge. Readings arrive at the interval you set, as often as once a minute.

Walk-in cold rooms, with several measuring points per room, have their own page: cold room temperature monitoring. For storage temperatures by food type and what a HACCP record should hold, see the guide to temperature monitoring for food safety.

Readings and alerts on the dashboard

The temperature of every cabinet at a glance

Each cabinet appears with its current reading and its range, grouped by site. Its chart shows how it behaves through the day, for example a display fridge that warms every afternoon.

Refrigerator alerts by SMS, call or app

When a cabinet stays out of range longer than allowed, the alert goes out by SMS, email, phone call or app notification. You choose on the account who receives it, for example the night shift manager and the owner as well.

Several sites on one account

A chain or a caterer with more than one kitchen sees every site on the same dashboard, each as its own location with its own cabinets.

Kitchens, shops and labs that install it

Restaurants and cafes

The freezer, the prep fridge and the dairy fridge on one controller, and the sheet taped to the fridge door is no longer needed.

Supermarkets and grocers

Display fridges and display freezers, where customers opening doors and the shop lighting move the temperature through the day. The history shows when and by how much.

Institutional kitchens and catering

Care homes, nurseries and schools, where the inspector asks for a record per fridge and per period.

Pharmacies and laboratories

A medicine fridge or a lab freezer that stands on its own, with one probe on a controller of its own and the same alerts and export.

Technical specifications

Temperature probe -55 to +125°C, ±0.5°C (-10 to +85°C)
Probe build Stainless steel, IP68, 1-3 m cable, 1-Wire
Temperature and humidity sensor -40 to +80°C, ±0.3°C at 25°C; 0-100% RH, ±3% RH; RS-485 Modbus, housings up to IP67
Omni Genesis controller 4 ports, one probe per port; rechargeable battery; 6-32 V DC input; IP65 enclosure
Omni Genesis Lite controller 1 sensor port, for a single fridge
Connectivity Omni Genesis: 4G-LTE with SIM included, Wi-Fi, Bluetooth. Omni Genesis Lite: Wi-Fi, Bluetooth, 4G-LTE available
Reporting interval From once a minute
Export Excel, per cabinet and per period
Warranty 24 months on the controller

Questions about refrigerator temperature monitoring

What if the fridges are far apart, or there are more than four?

Each controller reads the cabinets within cable reach of it. Fridges in another room, or a fifth cabinet, get a second controller, and a fridge that stands on its own can use an Omni Genesis Lite with a single probe. All the controllers report into the same account and the same dashboard.

Does the kitchen need Wi-Fi?

No. The Omni Genesis reports over the cellular network with a SIM included in the cloud subscription, which makes it a wireless monitoring system that does not depend on the site router. A system that relies on the local network stops reporting when the router is restarted or replaced. Only the probe is wired, from the cabinet to the controller, because a radio signal struggles to get out of a closed metal cabinet. Where a stable Wi-Fi network reaches the controller, it can report over Wi-Fi instead.

What happens in a power outage?

The controller has a rechargeable battery, so it keeps measuring, storing readings and sending alerts while the power is off. If the fridges start to warm during the outage the alert says so, and the history shows how long each cabinet was out of range.

Does the record replace the paper temperature log?

Yes. Every reading is stored with its time, per cabinet. Before an inspection you export the cabinet and the period requested to Excel and present it in place of the log sheets. Anyone still logging by hand can use the printable temperature log form.

Who installs the system?

Setup is free. In Israel we install on site. Elsewhere onboarding is remote: you put the probes in the cabinets and hang the controller, and we set up the ranges and alerts with you on the dashboard.

Send us your list of fridges and freezers

How many cabinets there are, what each one holds, and whether they stand together or in separate rooms. We will tell you how many controllers and probes the site needs.