Warehouse temperature monitoring you can see room by room

A warehouse that stores temperature-sensitive goods usually has three kinds of space: ambient or controlled-ambient storage, cold rooms (often 2–8 °C for pharmaceuticals) and freezers. Each has probes or data loggers that report through a gateway (wired, Wi-Fi, LoRaWAN or similar) to a monitoring platform, and that platform keeps the readings and calls someone out of hours.

What that stack rarely gives the people on site is the building. A list says probe 14 reads 9.1 °C. The map shows that probe 14 is in Cold Room 2, its door has been open for twelve minutes and the pallets inside are on hold. Spatial Map adds that layer and leaves the probes, the platform and your procedures where they are.

Each zone, room and freezer is a shape on the floor plan, named the way your probes are named. A data link binds the readings table to those shapes, and style rules colour them: in band, warning, excursion. Value badges show the live number over the probe or the room, and door sensors sit on the same map.

In the Polar Pharma demo, Cold Room 2 turns red at 9.1 °C, outside its 2–8 °C band, while its door is held open and the other zones stay in band. The facility’s Temperature Zones & Excursions, Temperature Probes & Mapping and Cold-Zone Doors reports are built from the same tables.

A probe or logger layer can also be drawn as a heatmap, weighted by the reading, so warm readings that cluster near a dock door or a ceiling heater stand out across the floor. The heat stops at walls and closed doors and shows one floor at a time. It is a picture for discussion, not a calculated temperature field.

Every change to a table row is kept: each probe has a row history in the detail drawer (up to 500 recent changes), and the History player replays a night shift so you can see when a zone started to drift and how long it took to recover.

Alert rules run on the readings table, are checked every 15 seconds and resolve themselves when the zone is back in band. Each has a severity, a message template and the roles or members to notify:

Under GDP and wider GxP expectations, storage areas for medicines are usually temperature-mapped before use and after significant changes. Data loggers are placed on a grid across the space, often empty and loaded and in summer and winter, to find hot and cold spots and decide where the permanent monitoring probes go. The EU GDP guidelines and WHO guidance on temperature mapping of storage areas describe the approach; the protocol and acceptance criteria are yours.

Spatial Map can hold the picture around that work: logger positions as markers on the plan, the study’s exported readings in a table, a heatmap of where readings ran warm, and cold-chain reports exported to PDF, Excel, CSV or JSON or shared as a read-only report link. It is not a validated system, it does not write a mapping protocol or report, and it does not make a site compliant. Your validated monitoring system, your loggers’ records and your QA procedures remain the record.