Cold stock doesn't spoil during the day. It spoils at 2am, during load shedding, with nobody watching.
A cold room that fails overnight costs you the stock, the insurance argument and — if an inspector asks for records — the compliance story too. addanode monitors cold rooms, freezers, display fridges and reefer moves continuously: calibrated temperature (and door, power and humidity where it matters), alerts to your phone while there's still time to act, and automatic records that stand in for the paper logs R638 hygiene inspections and HACCP plans expect — kept safe through the very power failures that cause the losses.
The whole cold chain, on one dashboard.
Cold rooms & freezers
Calibrated air (and product-simulant) temperature per room, door-open events, compressor power draw — so you see the failure developing, not just the thaw.
Retail & kitchen fridges
Display cases, under-counter units and back-of-house fridges across sites — the units whose paper logs are guessed at closing time, automated instead.
Vehicles & reefer moves
Trip temperature histories for delivery vehicles and reefer containers, so the cold chain claim survives the hand-over — and disputes land on data.
R638, HACCP and the records inspectors actually ask for.
South African food businesses operate under the R638 hygiene regulations (the regime behind the municipal Certificate of Acceptability), which expects perishables kept at safe temperatures — with records to show it. HACCP-based food safety programmes go further: cold storage is a classic critical control point, and a CCP without monitoring records is a finding waiting to be written. Continuous monitoring converts both from a clipboard ritual into an export:
- Automatic temperature logs per unit, timestamped, tamper-evident — the daily record kept even on weekends and public holidays, which is precisely when paper logging stops;
- Excursion records with responses — what went out of range, when, for how long, who was alerted and what was done: the corrective-action trail HACCP audits want;
- Calibration discipline — sensor checks in service, because a log from an uncalibrated probe is a liability wearing a lab coat;
- Insurance-grade incident evidence — when a compressor dies, the record shows the failure, the alert and the response times. Claims settle on that.
Monitoring supports compliance — it doesn't replace your food-safety programme. Your COA, your HACCP plan and your hygiene practice remain yours; what changes is that the temperature-records requirement runs itself, and problems surface while stock is still saveable.
Built for load shedding, because that's where cold chains die.
- The monitoring outlives the outage. Sensors and gateways run on batteries and buffer locally — the record through a four-hour outage is complete, including the recovery curve that tells you whether stock stayed safe.
- Thermal-mass intelligence, not panic alerts. A packed freezer rides out hours of outage; an empty display fridge doesn't. Alert thresholds work on product-relevant temperature and time-out-of-range, so 2am alerts mean act now, not "power blipped".
- Generator changeover watched. Where sites have backup power, the same system logs whether the changeover happened and the cold plant restarted — the join between this page and compressor condition monitoring, since fridge plant that cycles through outages fails younger.
- Multi-site by default. Butcheries to DC networks: every site's every unit in one view, with per-site alert routing — the pattern in our cold-chain case study.
Cold chain monitoring questions.
For how a real deployment rode through load shedding, read the case study.
Know your cold chain is holding — especially when the power isn't.
Send us your unit list — rooms, fridges, vehicles, sites. We'll propose monitoring that alerts in time and keeps the records your inspections expect.