A four-layer compliance evidence machine. LoRaWAN sensors detect. ThingsBoard (BlueMetric OS) processes and SHA-256 hashes every reading. Shadow Bench technicians respond to breaches within 4 hours. You receive a court-admissible weekly EHO certificate — automatically, every Monday at 00:01.
We clip Dragino LHT65N-NE117 probes directly onto your hot and cold water pipes — no drilling, no disruption, cable ties only. Each sensor achieves ±0.1°C accuracy and has a 10-year battery life. A single private LoRaWAN gateway covers the whole building. Installation takes 2–3 hours.
Every 15 minutes, each sensor transmits a temperature reading to our ThingsBoard platform — branded as BlueMetric OS. The moment the reading arrives, a SHA-256 cryptographic fingerprint locks the timestamp, sensor ID, GPS location, and reading value into a tamper-evident chain. 8,760 readings per sensor per year. Court-admissible under ISO/IEC 2…
If any reading breaches HSG274 Part 2 thresholds — hot water below 50°C or above 65°C, cold water above 20°C — our ThingsBoard rule engine fires an automatic WhatsApp job card to our Shadow Bench network of City & Guilds 6022 / BOHS W001 certified technicians. First available claims the job. Attends within 4 hours. GPS-verified. SHA-256 logged.
Every Monday, ThingsBoard auto-generates a branded PDF compliance certificate for every monitored site. Each certificate: all sensor readings RAG-coded against HSG274 thresholds, every breach event with chain-of-custody timestamps, Shadow Bench attendance records, and the SHA-256 verification reference. Zero manual work.
Every BlueMetric client receives a named login to BlueMetric OS — a white-labelled ThingsBoard portal showing real-time data for all monitored sites. Portfolio-level RAG tile overview. Per-site temperature trend graphs with HSG274 threshold bands. Live alarm and SLA tracker. Full weekly certificate archive.
Your BlueMetric Dashboard
Continuous water compliance for the institutions that cannot afford to get it wrong.
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