The part of the cold chain nobody can prove

Ask a wholesaler what happens to a delivery of insulin or vaccines between the warehouse and the pharmacy, and most can show you two solid records: a fridge log from the storage side, and a data logger packed inside the box that gets pulled out and downloaded once the delivery arrives. What almost nobody can show you is a record of what happened to the temperature while the box was actually on the vehicle — moving, in traffic, sitting on a hot loading dock, waiting for the next drop.

That gap isn't hypothetical. SAHPRA's Good Wholesaling Practice guideline (SAHPGL-INSP-03_v5, 18 September 2022) requires that where a delivery needs a controlled temperature different from the ambient environment, it must be "provided, checked, monitored, and recorded" during transport, with the monitoring data kept and "made available for inspection by the regulatory or other oversight body." The guideline even defines what it's looking for: a "temperature recording device" that monitors the exact temperature reached "during the different stages of storage and movement" and can produce a detailed reading afterward.

But look at how the same document describes the equipment actually doing that job today: a data logger placed inside the consignment, "removed on arrival," then read with software back at the warehouse. That's a record of the box, checked after the fact — not a record tied to the vehicle, the driver, or the specific delivery run while it's happening. And when a cold-chain item does come back as a return, the fallback is paperwork: a copy of the customer's "Fridge Log" and a signed letter from their pharmacist vouching that it was handled properly. A letter is not a temperature reading.

This is the part of the job RouteFast's newly shipped sensor pairing closes. A depot admin registers a Bluetooth temperature sensor under Fleet in the platform, then pairs it to a vehicle, an order, or a task — one active pairing at a time. From there it runs itself: the driver's phone picks up the sensor's readings in the background over the course of the trip, queues them if there's no signal, and syncs once there is. Dispatch or an ops user looking at that vehicle, order, or task afterward sees the actual reading history for the leg — latest, min, max, average — on the same detail page they're already using, not a separate logger to plug in.

It's worth being precise about what this is and isn't. Pairing a sensor to a vehicle is still a manual step today — someone has to do it before the vehicle leaves and undo it when the run ends; it isn't tied to route start or finish yet. And this isn't a compliance system: it doesn't replace a validation protocol, a calibration schedule, or an alarm on a breach. What it does is put a real, timestamped answer to "what did the temperature do during the drive" somewhere a dispatcher can actually look — instead of a letter from someone else's pharmacist.