The band is drawn, not described
Every reading appears against its permitted range as a strip. You never read a number and then work out whether it is a problem — the strip has already told you.
Cold chain monitoring
In range, or out of range.
There is no amber state, no “warning”, and no dashboard to interpret. A thing is within its band or it is not, and you find out in under a minute.
142in range
6out of range
54smedian time to alert
18mobattery, wireless sensors
7yrimmutable record retention
Nothing on this screen blinks
A pulsing alert is one your eye filters out within an hour. A row that leaves range moves once, sharply, and then holds until somebody acknowledges it.
Degree-minutes, not just peaks
A brief spike and a long drift are different events with different consequences for stock. We record the area under the curve and quarantine on it.