PLANT & MACHINERY / STORAGE
Tank level monitoring
The tank already has a gauge. Nobody can see it.
Sites store fuel, chemicals, process water, effluent and feedstock in tanks that very often already have a perfectly good level transmitter fitted. The problem is that the transmitter terminates at a local indicator or a panel nobody looks at, so the level is only known when somebody walks out and reads it. That produces the familiar pattern: emergency deliveries because a tank ran lower than anyone realised, overfills and bunded spills because a fill was not watched, and a stock figure in the finance system that is really a guess. Replacing the instrumentation is rarely justified, because the instrument is not the thing that is broken. The visibility is.
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The difference
Tank level monitoring: what changes the day it goes live
Sites store fuel, chemicals, process water, effluent and feedstock in tanks that very often already have a perfectly good level transmitter fitted. The problem is that the transmitter terminates at a local indicator or a panel nobody looks at, so the level is only known when somebody walks out and reads it. That produces the familiar pattern: emergency deliveries because a tank ran lower than anyone realised, overfills and bunded spills because a fill was not watched, and a stock figure in the finance system that is really a guess. Replacing the instrumentation is rarely justified, because the instrument is not the thing that is broken. The visibility is.
- The existing 4-20 mA transmitter read in place and reported continuously, with no replacement instrument and no cable run back to a panel
- Low-level alarms that trigger a planned delivery instead of an emergency one, and high-level alarms before a fill becomes a spill
- Usage trending per tank, so consumption rates and abnormal draw-down are visible rather than inferred from delivery invoices
- Remote and bunded tanks brought onto the same view as the ones next to the plant room
What you get
- 01
The existing 4-20 mA transmitter read in place and reported continuously, with no replacement instrument and no cable run back to a panel
- 02
Low-level alarms that trigger a planned delivery instead of an emergency one, and high-level alarms before a fill becomes a spill
- 03
Usage trending per tank, so consumption rates and abnormal draw-down are visible rather than inferred from delivery invoices
- 04
Remote and bunded tanks brought onto the same view as the ones next to the plant room
The full stack, applied here
All five layers, one accountable system
Every Indiott build runs all five layers as one accountable system. Follow a single live signal from the sensor that catches it to the report that proves it.
Turnkey LoRaWAN and industrial sensors read the physical world at the edge, on battery, without rewiring the site.
Hands a reading to CONNECT ↓
Gateways, industrial routers and serial device servers carry every reading back over LoRaWAN, 4G, 5G, Ethernet or satellite, so the far edge reports as reliably as the plant room.
Hands a signed stream to SECURE ↓
OT security by design: managed switching, VPN and firewall routers, protocol gateways and hardware data diodes keep the network segmented and the data tamper-evident to IEC 62443.
Hands a trusted stream to CONTROL ↓
When you want the system to act, remote IO, wireless valves and the bespoke Indiott Engineering line close the loop, dose, switch, isolate or interlock, with no human in the middle.
Hands an action to MANAGE ↓
The software layer turns it into decisions: live dashboards, mapping, alarming and analytics, with one-tap reports and clean feeds into your SCADA, BMS or existing platform.
The loop is closed ✓
How teams start
From a single pilot to the whole portfolio
You do not boil the ocean. Nearly every rollout runs the same four moves, and you own a working, evidenced result at the end of the first one.
Scope & risk map
We walk the sites, list the assets and pin the one constraint that matters, then agree what a good result looks like before a single sensor is bought.
Pilot on one site
A focused set of sensors goes onto one site or asset group, live on our telemetry and dashboards, wired to the people who need the alert.
Validate & standardise
We tune thresholds, kill false positives, confirm the integration into your SCADA, BMS or CAFM, and write the standard design down so it repeats.
Scale the portfolio
The proven design rolls out across the estate, reusing the same hardware standards and data models so every site reads the same way.
The tank level monitoring kit we deploy
Full catalogue
Urban.io Activity Sensor
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Urban.io Ambient Temperature Sensor
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Urban.io Battery Test Sensor
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Urban.io Current Sensor
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Urban.io Delta Pressure Sensor
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Urban.io Gateway
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Urban.io Humidity Sensor
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Urban.io Light Sensor
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| Model | Key specification | Price ex VAT | Availability |
|---|---|---|---|
| Urban.io Activity Sensor | — | Price on request | Quote only |
| Urban.io Ambient Temperature Sensor | — | Price on request | Quote only |
| Urban.io Battery Test Sensor | — | Price on request | Quote only |
| Urban.io Current Sensor | — | Price on request | Quote only |
| Urban.io Delta Pressure Sensor | — | Price on request | Quote only |
| Urban.io Gateway | — | Price on request | Quote only |
| Urban.io Humidity Sensor | — | Price on request | Quote only |
| Urban.io Light Sensor | — | Price on request | Quote only |
Brands in this kit: Urban.io
Why Indiott
A specialist stack, not a box-shifter
Brand-agnostic by design
We pick the best of each brand for the layer and the environment, not one vendor catalogue. Milesight, AquaIoT, Atop, Browan, SpecSens and Urban.io, chosen on merit.
The whole stack, one supplier
Sensing, connectivity, OT security, control and the dashboard come from one accountable team, so there is no finger-pointing when something needs to talk to something else.
Specified and supported in Britain
UK-based engineers scope the site, quote the kit and stand behind it, with compliance mapped to the regimes your auditors actually cite.
Honest kit, honest pricing
Prices are shown where we can, quoted fast where we cannot, and you get a straight answer and a bill of materials within one working day.
DEPLOYED IN THE FIELD
Compliance this answers to
| Standard | What it requires |
|---|---|
| Control of Pollution (Oil Storage) Regulations 2001 | continuous level data and overfill alarming supports the duty on oil storage and secondary containment |
| COMAH where applicable | inventory visibility and alarm records support safety-report obligations on dangerous substances |
| DSEAR 1998 | level monitoring on flammable stores supports the risk assessment and control of releases |
What it costs, roughly
Where a usable 4-20 mA transmitter already exists, a monitored tank is one loop sensor plus a share of the gateway, which is the cheapest point on this page by some distance. Tanks needing a new transmitter carry that instrument cost on top and we quote it separately so you can see which is which. Itemised within one working day.
Tank level monitoring: asked before buying
Will reading the loop interfere with our existing indicator or control system?
The loop sensor is designed to sit in the existing 4-20 mA circuit and pass it through, so the local indicator and any control action continue to work. It should still be commissioned by someone competent with the loop, and if that circuit does anything safety-related you should treat this as a modification and assess it accordingly.
What if the tank has no transmitter at all?
Then this is not a retrofit job and we will be straight about that. You need a level instrument first, radar for most process liquids, hydrostatic for simple water and effluent duties. We quote the instrument and the monitoring together so the real cost is visible up front rather than appearing later.
Can it work in a hazardous area?
Not as standard. The Urban.io sensors are IP67 industrial devices, not certified for use in a classified zone. Where you have a zoned area we scope certified instrumentation for the hazardous side and keep these sensors outside the boundary. We would rather tell you that now than have it surface at commissioning.
Related solutions
Next step
Scope it with an engineer.
Tell us the site, the assets and the constraint. You get a bill of materials and a straight answer within one working day.
- A bill of materials sized to your site
- Priced ex VAT, UK entity, no login wall
Rather talk it through? Call 023 9223 3611
Received. An engineer has it.
You will hear back within one working day with the parts, the prices and the lead time. A confirmation is on its way to your inbox.
If it is urgent, call 023 9223 3611.