Devices that drop offline without anyone noticing. Monitoring screens that almost fit how your team works, but not quite. A subscription invoice that grows every time you add a sensor. If a generic IoT monitoring tool has put you through any of that, you’re in good company. Most were built for an average customer, which means they were built for nobody in particular.
At ByteGears we build IoT device monitoring platforms around the way your operation actually runs. Off-the-shelf software asks you to bend your processes to fit it. We do the opposite. Our UK team builds monitoring systems that sit inside your workflows, connect to the equipment and systems you already have, and don’t arrive with a meter attached.
Where off-the-shelf IoT monitoring tools fall short
The IoT monitoring market is large and fragmented, with cloud platforms like AWS IoT Core and Azure IoT Hub, enterprise suites such as Cumulocity and Siemens Insights Hub, open-source options including ThingsBoard and OpenRemote, and network-focused tools like PRTG and Domotz. Plenty of capable products, but each comes with trade-offs that bite UK businesses in predictable ways:
- Pricing that punishes growth. Per-device and per-message models look fine at a few hundred devices and become a serious annual number once you hit a few thousand. Per-message cloud billing quietly pushes you toward edge aggregation just to keep costs down, and enterprise platforms hide real cost behind custom quotes.
- Generic rule engines. Vendor automation is fine for simple if-this-then-that logic. Multi-step approvals, escalation that depends on shift or operator, and site-by-site rebalancing rarely fit a drag-and-drop builder without painful workarounds.
- Protocol gaps. Legacy equipment on serial Modbus, older SCADA gear and vendor-specific control signals often aren’t supported. You end up paying for custom gateways or going without.
- Data residency. Several mainstream cloud IoT services default to US or EU regions. If you need UK hosting and a clear audit trail, the standard options are limited.
- Dashboards that don’t match the job. “Customisable” dashboards rarely match what an operator actually needs to see, so people keep a spreadsheet open beside the platform anyway.
- Vendor lock-in. Proprietary rule logic and export formats make leaving expensive. A price rise or a discontinued product becomes your problem.
The result is familiar: spreadsheets patching the gaps, alert fatigue from noisy thresholds nobody trusts, and staff trained on features they’ll never touch. None of that helps anyone make a faster decision.
What working with ByteGears is like
We’re a small UK shop, and that shapes how we work with mid-sized businesses:
- We map your current monitoring workflows, device estate and protocols before anyone writes code
- You pay once and own the result. No licence fees, no per-device or per-message meter
- We host in UK data centres and build to UK GDPR from the start, with encryption, RBAC and immutable audit logs
- The architecture is modular, so it grows from one site to many without a rebuild
- Our developers and support team are UK based and reachable when something needs attention
- We cap how many clients we take on, so you get proper attention through the project and after it
We’ll also tell you when a custom build isn’t the right answer. If a few hundred standard devices on one or two sites is your whole picture, a SaaS subscription or a well-configured open-source platform like ThingsBoard may serve you better, and we can help you set that up rather than sell you something larger.
What we build instead
A bespoke platform built around your operation, covering the data the system needs to manage and the workflows your team runs every day. A typical build handles these core entities:
- Devices with type, location hierarchy, firmware version, serial number, last-seen status and next maintenance due
- Sensors with units, calibration offsets, expected ranges and read intervals
- Telemetry stored as time-series data with quality flags and metadata tags
- Alerts with severity, acknowledgement, owner and resolution notes
- Rules that trigger on real conditions and fire the actions you actually need
- Sites in a hierarchy that matches your regions, plants and production lines
- Users and roles with permissions scoped to sites and device groups
Features we typically build in
Every solution is tailored, but most include this core set:
- Device discovery and provisioning, with certificate-based authentication and a clear, authoritative inventory
- A central dashboard showing every connected device live, with site rollups and views configured for your operators
- Threshold and offline-device alerting via email, SMS, Slack or straight into your other systems, with acknowledgement and history
- Smart alerting that aggregates and suppresses noise, so operators trust the notifications instead of muting them
- Mobile access designed for field technicians, not a desktop dashboard squeezed onto a phone
- Role-based access control, with permissions scoped down to individual sites and users
- A REST API plus webhooks and CSV import/export for clean integration with your stack
- Historical data with retention periods you choose, for trend analysis and audit
- Predictive maintenance and anomaly detection where the data supports it, flagging likely failures before downtime
- Remote device configuration and, where needed, firmware OTA updates
- Compliance audit logging with immutable records of system and user actions
How the work runs
We work in phases, and we deliberately start small. Around three quarters of large in-house IoT rollouts miss their timelines, and complexity is the usual culprit, so we scope a focused MVP first rather than trying to monitor everything on day one.
- Discovery and data modelling, usually two weeks. We document your processes, audit every device type and protocol, and design the data model. The protocol audit matters: unsupported legacy hardware is one of the most common reasons IoT projects overrun.
- Core build, usually four to six weeks. UK developers build the platform core, the API and device provisioning.
- Integrations and interface, usually three to four weeks. Device connections, dashboards and alerting tuned to your operators.
- Testing, documentation and go-live, usually two to four weeks. QA, parallel running against your old system where sensible, then rollout.
- Phase two, when you’re ready. Advanced analytics, mobile for field teams, ERP and ticketing integrations, multi-site fleet management and deeper compliance reporting.
A single-site MVP usually lands in 8 to 12 weeks. Multi-site builds with advanced workflows run 14 to 20 weeks.
What it costs
Custom development costs more upfront than a SaaS subscription. At scale, over three to five years, it usually costs less, and the reasons are concrete:
- No per-device or per-message meter. A few thousand devices on per-device pricing runs into six figures a year, indefinitely. A custom build is a fixed scope and price, then modest support.
- No data egress or feature surcharges. Cloud platforms charge for data downloads, long-term storage, advanced analytics and premium support. Those add up quietly.
- Less time lost to workarounds. A platform that fits your process means fewer spreadsheets and less manual checking.
- Lower training overhead when the interface follows the way people already work.
- You can change it later without waiting on a vendor release cycle.
As a rough guide, a single-site MVP for a few hundred devices is a smaller fixed-scope build, while multi-site estates with advanced workflows and integrations sit higher, and large enterprise deployments with compliance and multi-tenancy are larger projects delivered in phases. We’ll give you a clear, fixed price for your specific requirements during the free consultation.
Where this gets used
Custom IoT monitoring shows up across a lot of sectors, and the value is usually in the sector-specific workflow:
- Manufacturing: vibration, temperature and pressure on machinery for predictive maintenance; production metrics and defect tracking; MTBF and equipment utilisation
- Facilities and smart buildings: HVAC, air quality, lighting and occupancy controls; access and emergency systems with an audit trail
- Energy and utilities: smart meters, distribution transformers and substations; fault detection and demand response
- Healthcare: medical equipment tracking; temperature-sensitive storage for vaccines and drugs with compliance audit trails
- Retail: cold chain monitoring in refrigerated displays; inventory sensors; uptime alerts for self-checkout and POS
- Logistics: fleet telematics, refrigerated trailer monitoring and excursion alerts; mileage-based maintenance scheduling
- Agriculture: soil moisture and crop sensors, livestock health tags, equipment GPS
Because the build is bespoke, it accounts for the workflows and compliance rules specific to your industry. Where occupancy, location or health and safety sensors collect personal data, we design UK GDPR obligations in from the start. If you operate critical infrastructure under the NIS regulations, or need ISO 27001-grade controls, we build the security and incident logging to match.
Common Questions About Custom IoT Device Monitoring Platforms
Should we build custom or just use an off-the-shelf IoT platform?
Be honest about your situation. If you are monitoring a few hundred standard devices on one or two sites with simple alerting, a SaaS platform or an open-source stack like ThingsBoard will probably do the job, and we will tell you so. Custom tends to pay off once you pass roughly 1,000 devices, run several sites with awkward hierarchies, depend on legacy or proprietary protocols, or need workflows that a generic rule engine can't express. We are happy to help you set up and host an open-source platform if that is the right call.
How does a custom build compare on cost to per-device SaaS pricing?
Per-device and per-message pricing looks cheap at small scale and gets uncomfortable fast. A few thousand devices at a couple of pounds each per month runs into six figures a year, every year, with no end date. A custom build is a larger upfront cost with modest ongoing support, so the lines usually cross within two to three years at scale. We give you a fixed scope and price for your requirements rather than a meter that keeps running.
What's a realistic timeline?
A single-site MVP covering device discovery, live dashboards, threshold alerting and access control typically takes 8 to 12 weeks. Multi-site builds with advanced workflows and enterprise integrations run 14 to 20 weeks. We deliver in phases, usually starting with one site and 100 to 200 devices, because most over-ambitious IoT rollouts miss their dates by trying to do everything at once.
Can you connect to our existing devices and business systems?
Yes. We support standard protocols including MQTT, HTTP, CoAP, Modbus and OPC UA, and we can build adapters for legacy serial equipment and proprietary protocols. On the business side we integrate with ERP, CRM, ticketing tools like Jira or ServiceNow, and BI tools, via APIs, webhooks or direct database connections. We audit every device type and protocol up front, since unsupported legacy hardware is a common cause of overrun.
Where will our data be hosted, and is it UK GDPR-compliant?
We can host entirely in UK data centres, which matters because several mainstream cloud IoT services default to US or EU regions. Builds include encryption in transit and at rest, role-based access control, immutable audit logs and retention periods you set. If your occupancy, location or health and safety sensors collect personal data, we design lawful basis, data minimisation and erasure handling in from the start.
Can the platform work offline or at the edge?
Yes. If your devices sit in low-bandwidth or intermittently connected sites, we can build an edge-first architecture with local caching, local rule evaluation and eventual sync. Cloud-only SaaS platforms assume constant connectivity and tend to drop data when that assumption breaks.
What happens after launch?
You own the code and the data. As the team that built it, we can add features, tune alert thresholds, onboard new sites and handle changes quickly under a support arrangement that suits you. There are no licence fees and no per-device meter, so growing your fleet doesn't grow your bill.