The Hydrosense Legionella refill ONE Ultra pack is available in Thailand through BCST, providing replacement consumables to continue the highest-sensitivity serogroup 1 monitoring at 100 CFU/L — the most sensitive option in the Hydrosense ONE industrial range.

Legionella Refill ONE Ultra — High-Sensitivity Monitoring Continues

The Hydrosense ONE Ultra Industrial Kit Refill Pack supplies the single-use consumable components to continue operating your Hydrosense ONE Ultra Legionella Industrial Kit at full 100 CFU/L sensitivity. The permanent pipework adaptor remains installed at the water outlet. Only the consumables require replacement between testing cycles.

For facilities operating in territories or industries where 100 CFU/L action levels apply — including healthcare, high-occupancy hospitality, and industrial cooling systems — maintaining refill stock is essential. Furthermore, an interrupted testing cycle creates a gap in your water management programme records that auditors and regulatory bodies cannot accept retroactively. Consequently, facilities with stringent monitoring obligations should keep a minimum of one refill pack per active water outlet point in reserve at all times.

What Is Included

Consumables for five additional complete tests:

• Test strips × 5
• 1ml buffer syringe × 5
• Filter × 5
• Score card
• Instructions

The pipework adaptor and filtrate bottle from the original kit are reused. Additionally, if the adaptor or filtrate bottle requires replacement after extended use, contact BCST directly.

Performance When Used With The ONE Ultra Industrial Kit

• Detection: Legionella pneumophila serogroup 1
• Sensitivity: 100 CFU/L (250ml sample)
• Action levels: 1,000 CFU/L and 10,000 CFU/L
• Result time: 25 minutes
• VBNC Legionella detection included

Why 100 CFU/L Sensitivity Matters

The 100 CFU/L threshold is the most sensitive action level in international Legionella management frameworks. At this threshold, contamination is detected early — before bacterial concentrations reach the levels associated with clinical cases of Legionnaires’ disease. Therefore, facilities using the ONE Ultra Industrial Kit are identifying risk at the earliest possible point in the contamination cycle, maximising the window for effective remediation before guests, patients, or staff are exposed. The World Health Organization identifies early detection as the cornerstone of effective Legionella risk management in built water systems.

Compatibility

This refill pack is compatible with the Hydrosense ONE Ultra Legionella Industrial Kit only. It is not compatible with the ONE Multi Industrial Kit or the PRO Ultra Industrial Kit. Verify your original kit model before ordering. For the ONE Multi Industrial Kit refill, see the Hydrosense ONE Multi Industrial Kit Refill Pack available from BCST.

Important Note

For environmental water testing only. Not for human diagnostic use. Positive results require immediate response in accordance with your facility’s water safety management plan and consultation with a qualified water hygiene professional.