SPACES & SAFETY / COLD CHAIN & FOOD SAFETY
Fridge Temperature Monitoring, Bought Outright (UK)
Log every fridge automatically, get alerted before stock spoils
The short answer
What does automatic fridge temperature monitoring cost without a subscription?
A Milesight EM300-TH sensor is £38.90 ex VAT per fridge and a TS302 probe sensor £64.34, both bought outright with no monthly fee. Add one gateway for the site and every reading is logged automatically, which is the HACCP evidence a paper chart is meant to provide.
Cold chain still runs on a clipboard. Someone is meant to walk the fridges twice a day, read a dial and tick a sheet, but that sheet proves nothing about the fourteen hours nobody was looking, and a compressor that fails on a Friday night is not found until Monday with a freezer full of ruined stock. When the EHO asks for your records, manual logs are easy to question and easy to forget. For vaccines and pharma the same gap means a cold-chain excursion you cannot evidence, and a batch you have to destroy.
Talk through your site ● Answered within one working day
The difference
Fridge temperature monitoring: what changes the day it goes live
Cold chain still runs on a clipboard. Someone is meant to walk the fridges twice a day, read a dial and tick a sheet, but that sheet proves nothing about the fourteen hours nobody was looking, and a compressor that fails on a Friday night is not found until Monday with a freezer full of ruined stock. When the EHO asks for your records, manual logs are easy to question and easy to forget. For vaccines and pharma the same gap means a cold-chain excursion you cannot evidence, and a batch you have to destroy.
- Automatic temperature logging of every fridge, freezer, store and calorifier, a continuous record, not a twice-daily snapshot
- Out-of-range alerts to phones the moment a unit drifts or a door is left open, with enough warning to move stock before it spoils
- An exportable, time-stamped audit trail that satisfies HACCP and EHO checks instantly, replacing the paper sheet nobody trusts
- Documented cold-chain integrity for pharma and vaccine storage, so you can prove GDP compliance batch by batch
What you get
- 01
Automatic temperature logging of every fridge, freezer, store and calorifier, a continuous record, not a twice-daily snapshot
- 02
Out-of-range alerts to phones the moment a unit drifts or a door is left open, with enough warning to move stock before it spoils
- 03
An exportable, time-stamped audit trail that satisfies HACCP and EHO checks instantly, replacing the paper sheet nobody trusts
- 04
Documented cold-chain integrity for pharma and vaccine storage, so you can prove GDP compliance batch by batch
The full stack, applied here
One excursion, from the probe to the HACCP audit
Every Indiott build runs all five layers as one accountable system. Follow a single fridge excursion from the sensor that catches it to the report that proves it.
Calorifier probes, temperature sensors and temperature-humidity units log every fridge, freezer and store continuously for a cold-chain duty, not twice a day.
Hands a raw reading to CONNECT ↓
Sensors report over LoRaWAN from inside walk-in freezers, vans and stores where Wi-Fi cannot reach, so a multi-site estate reports to one place with no new cabling.
Hands a timed reading to SECURE ↓
The stack already includes secure backhaul: a VPN router encrypts the log in transit, so the HACCP record stays tamper-evident and defensible for an EHO.
Hands a trusted stream to CONTROL ↓
Remote IO closes the loop: an excursion or door-open on a chiller can latch a refrigeration alarm relay and call the on-call engineer before stock is lost.
Hands an alarm and log to MANAGE ↓
Every reading charted against its safe range, escalating alerts on excursion or open-door, and one-click HACCP and EHO reports with humidity tracking for damp stock.
The loop is closed ✓
How teams start
From a single pilot to the whole portfolio
You do not boil the ocean. Nearly every rollout runs the same four moves, and you own a working, evidenced result at the end of the first one.
Scope & risk map
We walk the sites, list the assets and pin the one constraint that matters, then agree what a good result looks like before a single sensor is bought.
Pilot on one site
A focused set of sensors goes onto one site or asset group, live on our telemetry and dashboards, wired to the people who need the alert.
Validate & standardise
We tune thresholds, kill false positives, confirm the integration into your SCADA, BMS or CAFM, and write the standard design down so it repeats.
Scale the portfolio
The proven design rolls out across the estate, reusing the same hardware standards and data models so every site reads the same way.
The fridge temperature monitoring kit we deploy
Full catalogue
Milesight EM300-TH Temperature and Humidity Sensor
£38.90 ex VAT
Milesight WS301 Magnetic Contact Switch Sensor
£38.90 ex VAT
Milesight EM320-TH Temperature and Humidity Sensor
£41.90 ex VAT
Milesight TS201 Temperature Sensor
£44.89 ex VAT
Milesight TS302 Temperature Sensor
£64.34 ex VAT
Milesight TS101 Insertion Temperature Sensor
£74.82 ex VAT
Milesight TS601 Cellular Temperature Sensor
£74.82 ex VAT
Milesight TS602 Cellular Temperature Sensor
£89.78 ex VAT
Fridge temperature monitoring costs between £38.90 and £89.78 ex VAT in the UK. Indiott published prices, September 2026. Delivery is charged by weight; VAT is added at checkout.
| Model | Key specification | Price ex VAT | Availability |
|---|---|---|---|
| Milesight EM300-TH Temperature and Humidity Sensor EM300-TH-868M | Temperature measuring range: -30°C to +70°C | £38.90 ex VAT (£46.68 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight WS301 Magnetic Contact Switch Sensor WS301-868M | Detection Distance: 20 mm | £38.90 ex VAT (£46.68 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight EM320-TH Temperature and Humidity Sensor EM320-TH | Temperature accuracy: Typ. ±0.2°C (0°C ~ 60°C), ±0.3°C (-30°C ~ 0°C) | £41.90 ex VAT (£50.28 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight TS201 Temperature Sensor TS201 | Probe temperature measuring range: -40°C ~ 125°C | Price range: £44.89 through £52.37 ex VAT (£53.87 – £62.84 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight TS302 Temperature Sensor | Connector Number: TS302: 2 × Connectors for two Temperature/Humidity Sensors or Temperature/Humidity Probe + Magnet Switch Sensor (TS301: 1 × Connector) | Price range: £64.34 through £73.32 ex VAT (£77.21 – £87.98 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight TS101 Insertion Temperature Sensor TS101 | Detecting Range: -30°C ~ +70°C (probe Ф 7 × 400 mm) | Price range: £74.82 through £143.65 ex VAT (£89.78 – £172.38 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight TS601 Cellular Temperature Sensor TS601-L0DEU | Connector Type (external probe support): None — integrated sensor only. TS602 adds a 5-pin M12 A-coded male connector for TH/DS18B20/PT100 probes and a 0.96-inch OLED display | £74.82 ex VAT (£89.78 inc. VAT) | In stock, UK · dispatched within 14 working days |
| Milesight TS602 Cellular Temperature Sensor TS602-L0DEU | Connector Type / Number: 5-pin M12 A-Coded Male Connector — 1 × connector for an external TH / DS18B20 / PT100 probe (the TS601 has no connector and uses a built-in sensor) | £89.78 ex VAT (£107.74 inc. VAT) | In stock, UK · dispatched within 14 working days |
Brands in this kit: Milesight
Why Indiott
A specialist stack, not a box-shifter
Brand-agnostic by design
We pick the best of each brand for the layer and the environment, not one vendor catalogue. Milesight, AquaIoT, Atop, Browan, SpecSens and Urban.io, chosen on merit.
The whole stack, one supplier
Sensing, connectivity, OT security, control and the dashboard come from one accountable team, so there is no finger-pointing when something needs to talk to something else.
Specified and supported in Britain
UK-based engineers scope the site, quote the kit and stand behind it, with compliance mapped to the regimes your auditors actually cite.
Honest kit, honest pricing
Prices are shown where we can, quoted fast where we cannot, and you get a straight answer and a bill of materials within one working day.
DEPLOYED IN THE FIELD
Compliance this answers to
| Standard | What it requires |
|---|---|
| HACCP | continuous logging and alerting turns temperature into a monitored critical control point with automatic corrective-action records |
| Food Safety Act / FSA | the audit trail evidences that food was kept at safe temperatures, supporting your due-diligence defence |
| EHO temperature records | inspectors get an instant, tamper-evident export instead of a handwritten sheet they can challenge |
| GDP (Good Distribution Practice) | for pharma and vaccine cold chain, the record proves storage and transport stayed within range, batch by batch |
What it costs, roughly
A typical small-site rollout, six temperature and humidity sensors across fridges and freezers, an insertion probe on the calorifier, a LoRaWAN gateway and twelve months of dashboard with alerting, comes in around the low single-digit thousands of pounds, with sensors at a couple of hundred pounds each. A cold-storage warehouse or multi-branch chain scales on sensor count, and the in-house Smart Cooling Box is specified and quoted to the application. Exact figures come back, mapped to your units and sites, within one working day.
Frequently asked questions
Which sensor suits fridges, freezers and probes?
For ambient fridge and store air the EM300-TH temperature and humidity sensor (£38.90 ex VAT) is a simple wall unit. For a probe into a freezer, chill or product, the TS201 (£44.89) and dual-channel TS302 (£64.34) take external temperature probes, and the TS101 insertion sensor (£74.82) suits deep stacks. Choose ambient or probe by what you need to prove.
How do I monitor temperature in transit vehicles?
On the road there is no gateway, so use a cellular sensor. The TS601 (£74.82 ex VAT) and TS602 (£89.78) cellular temperature sensors report directly over the mobile network, so a refrigerated van or trailer keeps logging and alerting away from any fixed LoRaWAN coverage. Fixed sites use LoRaWAN, vehicles use cellular, both feed the same record.
How does automatic logging help with HACCP and audits?
HACCP requires you to monitor critical control points, and chilled storage temperature is a classic one. Continuous sensors log every reading with a time stamp, so at an EHO or retailer audit you export a complete temperature history for any unit and date instead of relying on a paper sheet with gaps. Out-of-range events are flagged in that history.
What happens when a unit goes out of range?
Each sensor carries high and low thresholds. When a fridge drifts warm, for example after a door is left open or a compressor fails, the reading crosses the limit and the platform alerts staff by email, SMS or webhook. Catching it in minutes lets someone act before stock is lost or a food safety limit is breached.
How long do the sensors run and how often do they report?
Reporting interval is configurable, commonly every few to fifteen minutes for chilled storage. The LoRaWAN sensors are battery powered for a long service life at those intervals, with user-replaceable cells. Shorter intervals give a tighter record at some cost to battery life, so you tune it to how quickly a given unit can drift.
Does it need cabling or a subscription per fridge?
Fixed sensors use LoRaWAN, so there is no data cabling and no per-fridge SIM: one gateway, such as the UG65 at £279.82 ex VAT, covers a whole kitchen or store. Only in-transit cellular sensors use mobile airtime. This keeps the running cost of a large fixed estate low.
Related
Buying this in the UK
- Fridge temperature sensors from £38.90 ex VAT, bought outright — no monthly monitoring fee.
- Supplied by Indiott, a trading name of PSI Technologies Limited (Companies House 03689664, VAT GB 730 2340 83), Hampshire, United Kingdom.
- Every price is published ex VAT at indiott.com — no quote needed to see it.
- Typically dispatched within 14 working days from the UK, on a VAT invoice.
- Call 023 9223 3611 or request a quote.
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Next step
Scope it with an engineer.
Tell us the site, the assets and the constraint. You get a bill of materials and a straight answer within one working day.
- A bill of materials sized to your site
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