Fridge, freezer & walk-in monitoring

ColdCall

Stop finding out about a freezer excursion at the next manual check. ColdCall logs every unit around the clock and calls it out the second something goes wrong.

Hardware + software module Around-the-clock coverage
The problem

Why this matters

Manual temperature logs catch a fridge, freezer, or walk-in once or twice a shift at best. Anything that drifts out of range between checks goes unnoticed until someone happens to look, by which point reagents or specimens may already be compromised, and there is no record of exactly when the excursion started.

The solution

What it does

ColdCall puts a small networked probe in every fridge, freezer, and walk-in, reading temperature on a schedule, every 15 minutes by default and adjustable per probe, and sending it to a central temperature server that keeps two years of history. The moment a reading crosses a high or low threshold, ColdCall pushes an alert straight to Hailing Frequencies and sends an email and/or text, so the lab knows in minutes instead of at the next manual round.

Core capabilities

Built for practical deployment.

Stop relying on a twice-daily paper log to catch a freezer that's already drifted.

Per-probe configurable read interval, every 15 minutes by default.

Centralized temperature server with two years of retained history per unit.

Configurable high/low threshold alerting for every fridge, freezer, and walk-in.

Automatic alert push to the Hailing Frequencies status board.

Email and/or SMS notification the moment a unit goes out of range.

One dashboard covering every storage unit in the lab.

Workflow

How it works

1
A probe reads its unit's temperature on its configured interval.
2
The reading is sent to the temperature server and logged.
3
A reading outside the configured range triggers an alert.
4
The alert posts to Hailing Frequencies and goes out by email and/or SMS.
Ideal for
  • Specimen and reagent storage units
  • Walk-in cold rooms
  • Blood bank and chemistry refrigeration
  • Labs that need audit-ready temperature records
Outputs
  • Continuous temperature log with two-year retention
  • High/low excursion alerts
  • Hailing Frequencies board notification
  • Email/SMS alert delivery
Next step

Talk through a pilot, demo, or validation scenario.

Tell us what your lab is trying to solve. We can shape the first conversation around this product, a connected workflow, or the full Hailing Lab Systems platform.