Detect Mould Before It Becomes a Complaint

40% of social rental housing faces persistent moisture or mould issues.

Mould problems in housing portfolios are stubborn because the causes remain invisible: excessive humidity, poor ventilation, or cold external walls. Reactive intervention—only after tenant complaints—is too late and too costly.

In Amsterdam alone, 40% of social rental housing struggles with moisture and mould problems, affecting more than 15,000 homes in a single city. Housing alderman Zita Pels concluded that the scale and complexity of the problem demands structural measures beyond reactive maintenance. Mould and moisture, she stated, are "often symptoms of structural building defects and deferred renovations."

The three invisible causes:

• High relative humidity (RV%): Condensation on cold surfaces gives mould spores room to grow. Root cause: too many occupants, insufficient ventilation, or leaks.
• Inadequate ventilation: Rising CO₂ levels are a direct indicator of poor air exchange. Higher occupancy without extra ventilation accelerates moisture buildup.
• Thermal problems: Large temperature differences—cold exterior walls versus warm indoor air—cause condensation on walls, corners, and ceilings.

Our sensors continuously measure the three parameters that together determine mould risk. The platform automatically translates raw data into clear signals for your team.

Relative Humidity (RV%)

Above 65-70% RV, mould growth accelerates rapidly. Sustained high RV without ventilation spikes indicates structural moisture transport or leaks—not a behavioural pattern.

CO₂ Concentration (ppm)

CO₂ rises with occupancy and drops with ventilation. High CO₂ + high RV = many people in limited space without air exchange. This is a direct indicator of ventilation shortfall. Cobra Climate uses CO₂ sensors without ABC correction, so trends remain reliably comparable over time.

Temperature (°C)

Together with RV, the platform calculates the dew point: the temperature at which condensation occurs. Cold spots combined with high RV are mould hotspots—visible on the dashboard before tenants report them.

Why No ABC Correction?

ABC (Automatic Baseline Correction) resets calibration periodically to an assumed outdoor air value. In high-occupancy housing, the air is never "clean"—so ABC systematically underestimates CO₂ concentration. Cobra Climate sensors measure absolute values, making trends and deviations reliably comparable across dozens of homes.

Many housing associations already have sensors from different manufacturers in operation—from legacy systems to recent purchases. Cobra Climate integrates all these sources into one uniform dashboard, with no hardware replacement needed.

Our interface is built to normalise sensor data from diverse manufacturers in a consistent way, visualise it, and analyse it. You benefit from the platform’s intelligence regardless of which hardware brand you use.

Platform Capabilities

• Open Standards: Integration via REST API, MQTT, and common IoT protocols. No vendor lock-in, no closed ecosystem.
• Uniform Display: Sensor data from different brands is normalised and displayed uniformly—same dashboard, same scales, same alert logic.
• Connection to Existing Systems: Link to your BMS, ERP, or management software via REST API or webhooks. Cobra Climate adds intelligence on top of your existing infrastructure.
• Migration Without Replacement: Start with what you have. Expand with Cobra Climate sensors where needed. You control the pace of transition.

Made in the Netherlands: Developed in Badhoevedorp. Built in Zaandam. No timezone issues, no language barriers, no support via ticket systems on another continent. Short lines for support, customisation, and bespoke solutions—within walking distance.

Our sensors and platform are purpose-built from the ground up for environments where installation procedures, privacy, and scale truly matter.

Eight Advantages

1. No Gateway Required: Sensors communicate directly via WiFi—no extra hardware per complex, no technician needed for network connections. Fewer planning hurdles, fewer failure points.
2. Plug-and-Play Installation: Sensor in the outlet, done. No drilling, no cable routes, no IT department needed. Installation and removal take minutes—ideal for units with changing tenants.
3. 10-Year Lifespan Without Updates: Hardware built for long-term deployment. No mandatory firmware updates, no dependence on vendor support. Robust and manageable.
4. No Display, No Confusion: The sensor has no screen or lights. Tenants don’t notice it—no questions, no misinterpretation, no behaviour changes that skew readings.
5. GDPR-Compliant, NL-Based Servers: All data lives on Dutch-owned EU datacentres in Amsterdam. No Microsoft Azure, no Amazon AWS. Encrypted via TLS and AES-256. GDPR-compliant by design.
6. HPE/Juniper Security Certification: Security is certified by HPE (Juniper Networks), so sensors are deployed in high-security datacentre environments. Enterprise-grade reliability.
7. Scalable to Thousands of Homes: The platform is tested and built for large data volumes from thousands of sensors simultaneously. Whether you monitor 50 or 5,000 units—the architecture holds.
8. Any Sensor Brand Welcome: Existing hardware doesn’t need replacement. Via open standards, the platform integrates sensors from other manufacturers in the same uniform environment.

For housing associations, tenant data privacy is a hard requirement. Cobra Climate is built from the ground up with that principle at its core.

Security Certifications & Standards

• TLS Encryption in Transit: All data encrypted during transport.
• AES-256 Storage: Data at rest encrypted with 256-bit encryption.
• GDPR-Compliant by Design: Privacy built in from the start, not added later.
• Dutch-Owned EU Datacentres (Amsterdam): No Microsoft Azure, no Amazon AWS. Your data stays on EU infrastructure owned by a Dutch entity.
• HPE/Juniper Certified: Security certified by HPE (Juniper Networks), deployed in high-security datacentre environments. Enterprise-grade reliability.
• 99.9% Uptime SLA: Reliable platform availability.
• No Vendor Lock-In: Open standards mean you retain full control and portability.