Choose sensors by the question.

Useful for: Excess cold and heat, heating performance, thermal comfort and post-repair review.

Evidence value: Shows ambient trends over time and can support prioritisation where homes remain persistently cold or hot.

Limitations: Does not prove why the condition exists; heating, fabric, affordability, occupancy and behaviour may all be relevant.

Follow-up: Review trends with repairs history, resident vulnerability and inspection findings.

Useful for: Condensation and mould-supporting conditions in bedrooms, bathrooms, kitchens and living spaces.

Evidence value: Highlights persistent moisture patterns and helps evidence improvement or recurrence after intervention.

Limitations: Does not prove visible mould, cause or breach on its own.

Follow-up: Combine with temperature, ventilation assessment, resident contact and inspection.

Useful for: Condensation risk when air moisture and surface temperatures interact.

Evidence value: More meaningful than humidity alone when assessing condensation risk.

Limitations: Requires accurate temperature and humidity data and correct calculation.

Follow-up: Use as a risk indicator, then inspect likely cold surfaces and ventilation paths.

Useful for: Cold bridging, insulation issues and surfaces prone to condensation.

Evidence value: Supports survey findings where cold surfaces repeatedly fall below dew point.

Limitations: Not a full fabric diagnosis without competent inspection.

Follow-up: Check insulation, ventilation, heating, thermal bridging and repair history.

Useful for: Ventilation effectiveness, stale air patterns and occupancy pressure.

Evidence value: Helps identify where moisture and poor air change may be linked.

Limitations: Should not be used to blame residents or infer exact occupancy.

Follow-up: Assess ventilation, communicate clearly and link to humidity trends.

Useful for: Indoor air quality, ventilation pressure and pollutant events.

Evidence value: Supports healthy homes assessment and wider air quality review.

Limitations: Readings vary widely and may need specialist interpretation.

Follow-up: Use with resident reports, ventilation checks and source investigation.

Useful for: Fine particulate exposure, cooking, smoking, external pollution ingress and combustion concerns.

Evidence value: Useful where health, ventilation or indoor pollution concerns are raised.

Limitations: Not a direct damp or mould measure.

Follow-up: Review trends, sources, external conditions and ventilation.

Useful for: Dust, coarse particulates and environmental air quality changes.

Evidence value: Provides broader air quality context.

Limitations: Can be heavily influenced by activity and external air.

Follow-up: Use as supporting context rather than sole evidence.

Useful for: Lighting, occupation pattern context and some safety/wellbeing signals.

Evidence value: May support HHSRS lighting consideration in specific scenarios.

Limitations: Can be intrusive if misused to infer behaviour.

Follow-up: Use only where purpose is clear and proportionate.

Useful for: Persistent noise events, nuisance, plant room faults or resident wellbeing signals.

Evidence value: Supports pattern evidence where noise is part of a case.

Limitations: Audio recording raises privacy risks; sound-level monitoring is different from recording speech.

Follow-up: Use sound level only where possible and explain purpose clearly.

Useful for: Escape of water beneath sinks, baths, boilers and appliances.

Evidence value: Provides early alert and timestamped evidence of water presence.

Limitations: Does not establish cause or extent of damage.

Follow-up: Urgent inspection, repair order, photos and post-repair monitoring.

Useful for: Longer perimeter leak monitoring around plant, baths, walls or risers.

Evidence value: Useful for hidden leak risk and higher-value communal or plant areas.

Limitations: Needs careful installation and maintenance.

Follow-up: Map location and link alert to inspection and repair workflow.

Useful for: Unexpected flow, continuous use or possible leak.

Evidence value: Can detect hidden leaks earlier than visual inspection.

Limitations: May require plumbing integration and careful interpretation.

Follow-up: Investigate anomalies and confirm with inspection.

Useful for: Pressure drops, supply problems, pipe risk and plant performance.

Evidence value: Supports diagnosis in communal systems or managed assets.

Limitations: Not usually needed in simple damp pilots.

Follow-up: Use for plant/communal systems and maintenance regimes.

Useful for: Flood risk, basements, communal stores and external inundation.

Evidence value: Creates clear threshold evidence for flood events.

Limitations: Not a substitute for flood risk management.

Follow-up: Escalate to emergency response and asset planning.

Useful for: Fire detection presence, activation and device health where integrated systems permit.

Evidence value: Supports safety assurance and maintenance records.

Limitations: Safety-critical alarms must comply with relevant standards; do not improvise consumer monitoring as statutory fire protection.

Follow-up: Follow fire safety regime and competent-person advice.

Useful for: Heat rise in kitchens, plant rooms and areas unsuitable for smoke detection.

Evidence value: Supports life-safety and fire risk evidence.

Limitations: Must be part of a compliant fire safety approach.

Follow-up: Escalate according to fire safety procedure.

Useful for: Combustion risk from fuel-burning appliances.

Evidence value: Emergency signal requiring immediate action and clear record keeping.

Limitations: Not a general air-quality proxy.

Follow-up: Emergency response, appliance check and resident safety communication.

Useful for: Potential gas leak or explosive atmosphere risk.

Evidence value: High-priority alert evidence.

Limitations: Requires competent installation and reliable escalation.

Follow-up: Emergency procedure and gas-safe competent response.

Useful for: Flame detection in specific plant or industrial contexts.

Evidence value: May support specialist safety monitoring.

Limitations: Usually not appropriate for general homes.

Follow-up: Use only within competent-designed systems.

Useful for: Failure or battery health in communal areas.

Evidence value: Supports inspection and maintenance evidence.

Limitations: Not related to damp/mould but relevant to wider safety assurance.

Follow-up: Repair and test under fire/building safety regime.

Useful for: Access, security, fire door monitoring or vulnerable-resident context.

Evidence value: Can evidence fire door misuse or unusual access patterns.

Limitations: Can become intrusive if used to monitor lifestyle.

Follow-up: Define purpose, consent/notice and escalation route.

Useful for: Ventilation context, security, excess cold and resident support.

Evidence value: Can explain environmental readings when used proportionately.

Limitations: Risk of blame or surveillance if misused.

Follow-up: Use carefully with clear resident communication.

Useful for: Structural movement, impact, vandalism or plant vibration.

Evidence value: Supports event detection and maintenance triage.

Limitations: Does not diagnose structural safety alone.

Follow-up: Competent inspection where structural risk is possible.

Useful for: Structural movement, wall movement, retaining structures or temporary works.

Evidence value: Trend data can trigger specialist review.

Limitations: Requires engineering interpretation.

Follow-up: Escalate to structural engineer where thresholds are exceeded.

Useful for: Crack width or movement over time.

Evidence value: Can document deterioration and support structural assessment.

Limitations: Needs correct installation and competent interpretation.

Follow-up: Use alongside photographs, surveys and engineering advice.

Useful for: Ingress, insulation wetting and roof failure risk.

Evidence value: Can highlight hidden defects before internal damage appears.

Limitations: Installation can be specialist and context-dependent.

Follow-up: Inspect roof, drainage, insulation and internal damage.

Useful for: Heating use, empty homes, abnormal usage or plant performance.

Evidence value: Supports context around excess cold, affordability and equipment use.

Limitations: Privacy-sensitive and not proof of behaviour or fault.

Follow-up: Use aggregated/proportionate data and explain purpose.

Useful for: Heating patterns and potential excess cold context.

Evidence value: Useful for fabric/heating performance analysis where lawful and proportionate.

Limitations: May reveal behavioural patterns; needs governance.

Follow-up: Use with consent/notice, vulnerability and heating checks.

Useful for: Energy use, temperature correlation and retrofit monitoring.

Evidence value: Supports digital property context if properly governed.

Limitations: Data access and consent can be complex.

Follow-up: Apply DPIA and clear resident communication.

Useful for: Renewable performance and asset assurance.

Evidence value: Supports energy system monitoring.

Limitations: Peripheral to Awaab’s Law unless linked to heating/energy outcomes.

Follow-up: Use for asset and retrofit assurance.

Useful for: Battery performance, faults and energy resilience.

Evidence value: Supports safety and asset monitoring.

Limitations: Requires specialist safety controls.

Follow-up: Integrate with energy and fire safety procedures.

Useful for: Electrical load, faults and usage of communal/domestic chargers.

Evidence value: Supports asset and electrical safety management.

Limitations: Usually not relevant to damp/mould cases.

Follow-up: Use for wider building safety and asset assurance.

Useful for: Resident concern, welfare need or non-urgent support request.

Evidence value: Creates a timestamped resident signal that can trigger triage.

Limitations: Does not classify the hazard or replace emergency services.

Follow-up: Route to human triage and case note.

Useful for: Discreet resident-initiated contact in supported or vulnerable settings.

Evidence value: Can reveal hidden support needs or unreported property concerns.

Limitations: Safeguarding and emergency boundaries must be clear.

Follow-up: Define escalation, hours of operation and emergency messaging.

Useful for: Simple reporting from notices, letters or property areas.

Evidence value: Links resident report to property, time and issue type.

Limitations: Depends on smartphone access and digital inclusion.

Follow-up: Offer non-digital alternatives.

Useful for: Tap-to-report or contractor verification at locations.

Evidence value: Useful for inspections, communal checks and resident reporting.

Limitations: Requires compatible devices and process design.

Follow-up: Use for proof-of-visit and structured reporting.

Useful for: Accessible resident reporting and reminders.

Evidence value: May help residents who struggle with forms or apps.

Limitations: Privacy, security and platform dependence must be considered.

Follow-up: Use cautiously with explicit purpose and alternatives.

Useful for: Low-friction resident contact and triage.

Evidence value: Creates a conversational evidence trail if integrated into case management.

Limitations: Must not become an unmanaged inbox.

Follow-up: Use structured questions, consent notices and case logging.

Useful for: Heating availability, fault events and runtime.

Evidence value: Supports excess cold and repair triage.

Limitations: May require manufacturer/system integration.

Follow-up: Link to repairs, emergency heating and vulnerability.

Useful for: Whether heating is operating and for how long.

Evidence value: Helps distinguish equipment failure, control issues and thermal performance.

Limitations: Can be privacy-sensitive and must not be used simplistically.

Follow-up: Review with resident, heating engineer and fabric context.

Useful for: Extractor operation, failure and runtime.

Evidence value: Strong evidence for ventilation-related damp risk.

Limitations: Does not prove resident use or mould cause by itself.

Follow-up: Repair fan, check ducting, airflow and controls.

Useful for: Mechanical ventilation or plant maintenance need.

Evidence value: Supports planned maintenance and air quality assurance.

Limitations: Requires equipment-specific sensors.

Follow-up: Replace filters and record action.

Useful for: Plant room failure, sump pump status or communal system faults.

Evidence value: Early warning for water damage, heating outage or service failure.

Limitations: May need BMS integration.

Follow-up: Escalate to maintenance and incident workflow.

Useful for: Lift availability, faults and entrapment risk.

Evidence value: Supports service assurance and vulnerable resident access planning.

Limitations: Specialist lift systems and safety regimes apply.

Follow-up: Integrate with lift contractor and resident communication.

Useful for: Weather context for excess cold/heat and condensation risk.

Evidence value: Helps interpret internal readings and heating demand.

Limitations: Not property-specific.

Follow-up: Use postcode-level weather cautiously.

Useful for: Ingress risk, roof/gutter issues and repeat damp correlation.

Evidence value: Useful when internal damp follows rain events.

Limitations: Correlation is not causation.

Follow-up: Inspect fabric, gutters, drains and roof.

Useful for: Driving rain, ventilation, heat loss and external exposure.

Evidence value: Supports building-fabric investigation.

Limitations: External data may be approximate.

Follow-up: Use with site exposure and survey findings.

Useful for: Adds external context to internal sensor trends.

Evidence value: Improves interpretation and supports repeat-pattern analysis.

Limitations: Depends on data quality and location granularity.

Follow-up: Use as supporting evidence only.

Useful for: Connectivity, battery, signal strength and data gaps.

Evidence value: Proves whether the monitoring system was functioning during relied-upon periods.

Limitations: Does not evidence property condition.

Follow-up: Monitor uptime and mark evidence gaps.

Useful for: Location of equipment, temporary heaters, dehumidifiers or contractor assets.

Evidence value: Supports operational control and proof of deployment.

Limitations: Can become intrusive if used on people.

Follow-up: Use for assets, not covert personal tracking.