Sensor-Guard

SensorGuard is a fault detection and diagnostics (FDD) platform for HVAC and building automation systems. It scans BAS trend data for contradictions between signal pairs, command vs. position, supply temperature vs. setpoint, airflow vs. demand and returns a ranked fault report with root cause isolated from cascade effects. Unlike rule-based AFDD tools that fire threshold alarms, SensorGuard flags structural contradictions in the data. When a cooling valve is commanded to 92% but position reads 5%, that is not a threshold violation — it is a decoupled actuator. SensorGuard identifies the pattern, estimates the energy waste, and explains what likely failed and when the pattern started. Key capabilities: Stuck valve and damper actuator detection Sensor drift and bias identification Supply air temperature deviation analysis Root cause vs. cascade fault separation Cost impact estimate per fault Fault lifecycle management — acknowledge, investigate, resolve Auto-generated PDF reports for stakeholders Works with CSV exports from any BAS vendor — Trane, Honeywell, JCI, Siemens, Schneider Live BACnet/IP monitoring on Professional plan No hardware required. Upload a CSV trend export and get a fault report in minutes. No training period, no model tuning, no opaque anomaly scores — every alert includes the exact contradiction that triggered it. Designed for facility managers, building engineers, energy managers, and BAS contractors who need actionable diagnostics, not more noise. 14-day free trial. No credit card required.