HIVIS Monitor 2.0Workplace Air Quality & Acoustic Monitoring
Real-time indoor air quality and sound level monitoring for workplace safety. HIVIS Monitor 2.0 integrates seamlessly into your hi-vis vest, providing actionable IAQ insights on demand.
About the Project
HIVIS Monitor is a wearable IoT system designed for indoor air quality and acoustic monitoring in trades and industrial workplaces. The device fits inside a standard hi-vis safety vest and continuously measures IAQ score, eCO₂, bVOC gas index, temperature, humidity, and noise levels.
Built on the ESP32 microcontroller with a Bosch BME688 environmental sensor and an INMP441 MEMS microphone, each device publishes data every 3 seconds to a self-hosted server stack — Mosquitto MQTT, Node-RED, InfluxDB, and Grafana — all running on a single machine on-site.
The system is fully self-hosted and privacy-respecting. No data leaves your network. Workers get real-time air quality feedback on the device OLED display; supervisors see the full fleet view on the live dashboard below.
Sustainable development impact
HIVIS Monitor 2.0 aligns with global sustainability goals for workplace health and innovation.
Inside the technology
Compact sensors, powerful insights. All integrated into a single wearable device.
Live fleet monitoring
Real-time data from all active devices. Click any device to expand and see detailed metrics and charts.