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Practical engineering notes from IoT Technologies Ltd, written around field deployments, compliance evidence, RF reality and secure operational data.
Why the sensor never listens
A receiver is the biggest power draw in a battery sensor and the whole of its remote attack surface, and it performs no part of the measurement. Why we left it out, and when that is the wrong call.
The warm-up no one saw
A probe check reads the temperature once. How continuous monitoring catches the overnight freezer failure, the warm-up that recovers by morning and the weekend drift between checks — no rewiring.
What happens between the dips
A dip stick tells you the level once. How continuous monitoring catches the run-dry, the overflow and the overnight loss between rounds — no re-plumbing.
The trip nobody hears
A pressure switch trips locally and signals no one. How to hear the trip the moment it happens — and see the drift the switch can't.
The slow leak a gauge never shows
A dial tells you the pressure only while someone is watching it. How continuous monitoring catches the drifts and out-of-hours excursions between rounds — no re-engineering.
The signal your equipment already sends
Fault and trip contacts on your existing kit usually report to nobody. Dry contact alert monitoring carries them the last mile — no rewiring.
The operational truth machine
Spreadsheets record when someone looked, not what happened. How industrial remote monitoring puts real-time truth on the kit you already own.
AIoT vs IoT: visibility first
Ride the AIoT shift — but you can’t be intelligent about data you aren’t reliably collecting. Why visibility comes before intelligence.
433 vs 868 MHz underground
Why lower-frequency 433 MHz gets meter reads out of below-ground chambers where 868 MHz struggles.