Continuous Monitoring + Automated Chemical Dosing
CLaura checks your pool’s chlorine and pH continuously and adjusts dosing automatically, so problems are caught early instead of at the next manual test. Less guesswork, fewer chemicals wasted, and fewer surprises for your team and guests.
THE challenge
Pool water management in hotels and resorts is no longer a basic utility task. It now sits where hygiene, regulatory requirements and guest well-being meet. Moving from manual, snapshot testing to continuous online monitoring isn’t just a technology upgrade. It’s a change in how pools are run.
Traditional pool care relies on manual sampling, colour-based test kits and hand-adjusted dosing. This can meet basic regulatory requirements, but water quality can change quickly between tests, leaving gaps where problems go unnoticed.
Sudden surges in bather load
Midday sun breaks down chlorine
Sunscreen and body oils use up chlorine
Chloramine smell, red eyes, itchy skin
Clean, comfortable pool water depends on keeping two readings in balance: free residual chlorine and pH.
Free residual chlorine
1 – 3 ppm
pH
7.2 – 7.8
Typical recommended range based on NEA (Singapore) guideline value. Requirements vary by country; refer to your local authority.
CLaura was built to close that gap.
Luxury guests trust the hotel with their comfort. When pool water drifts out of balance between checks, guests notice it first: the “chemical smell,” red eyes and itchy skin. CLaura monitors your pool continuously and adjusts dosing automatically, so imbalances are corrected early, helping keep the water comfortable for guests.
how it works
CLaura checks your pool water around the clock, adds only the chemicals it needs, and shows every reading live on your phone or computer.
CLAURA ANALYZER
Manual test kits give you a snapshot a few times a day. CLaura measures free chlorine and pH continuously, so problems are caught within minutes, not at the next round.
| Parameter | Range |
| Free chlorine | 0-20ppm |
| pH | 4-12 |
| ORP | ±2000mV |
| Accuracy | ±3% of reading |
Full technical specification available on request
CLAURA DOSING
The analyzer and dosing system work as one package from a single system. When chlorine or pH moves away from target, CLaura adds just enough chemical to bring it back. It doses more when the gap is larger and less when it’s smaller.
| Feature | Detail |
| Channels | 2 (chlorine + pH) |
| Dosing rate | Adjusts automatically to live readings and pool volume |
| Output | 4-20 mA / Modbus |
| Alarms | High/low chlorine & pH, low chemical level |
Full technical specifications available on request.
What it Delivers
The Dashboard
See live pool readings on any device, with fewer trips to the pump room.
Push notifications the moment chlorine or pH drift outside the KKM-aligned range, before a violation occurs.
Modbus and 4-20mA outputs drive dosing pump in a closed feedback & feedforward loop — dosing only what's needed, when it's needed.
WHY CHOOSE CLaura
Periodic tests show a moment. CLaura covers the hours in between, making consistent pool hygiene your everyday standard.
QUESTIONS, ANSWERED
The CLaura Complete Solution combines the CLaura analyzer (continuous free chlorine and pH monitoring), automated chemical dosing and the CLaura dashboard in one integrated package.
Disruption is minimal. CLaura is installed in your existing pump room. Any brief stop in circulation needed to connect the sampling and dosing lines can be scheduled outside your pool’s operating hours. Once running, CLaura takes a small sample of water from the circulation line, so the pool stays open and circulation continues as normal.
No. CLaura uses an electronic (amperometric) sensor that measures free chlorine continuously without any reagents, so there’s no waiting for manual test results. A standard portable DPD tester is used periodically to check and calibrate the sensor’s accuracy.
Yes. Your team can view live pool readings on any phone, tablet or computer, and receive push or email alerts as soon as readings move outside your target range.
Every CLaura dosing system includes safeguards to help prevent under- and overdosing:
Important: CLaura is a monitoring and dosing tool. It does not replace the operator’s responsibility for water quality or for regulatory testing and reporting. Results depend on correct installation, maintenance, calibration and site conditions.
Get a free assessment of your pool’s water chemistry and current testing routine.
No obligation — and results based on your actual operation, not a generic estimate.
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Hannve Technology Pte Ltd is a sustainable and advanced technology solution provider dedicated to accelerating business impact through high-quality, reliable solutions that meet our customers’ unique needs and help them achieve their ESG objectives.
© 2026 HANNVETECH
Quick Links
Hannve Technology Pte Ltd is a sustainable and advanced technology solution provider committed to accelerating business impact by providing high-quality and reliable solutions that meet the unique needs of our customers and help them achieve their business objectives in ESG.
© 2023 HANNVETECH
