Terrestream

INDOOR AIR FINALLY BECOMES ACTIONABLE Terrestream is the companion app for Terrestream indoor-air sensors. It connects what your sensor reads inside with outdoor air quality, smoke, pollen, weather, and the rhythms of your home—then suggests what to do next. Open a window or keep it closed? Run filtration or look for a source inside? Terrestream weighs both sides of the window before recommending a practical response. INTELLIGENCE THAT LEARNS YOUR HOME A reading alone cannot explain what is happening. Terrestream Intelligence recognizes more than 100 situations across indoor readings, outdoor conditions, changes over time, and room-to-room differences, and turns them into an actionable suggestion for improving your indoor environment: ventilate, run filtration, investigate an indoor source, adjust a device setting, or simply keep watching. As Terrestream learns the patterns of your home, its predictive intelligence can surface recurring changes earlier—helping you act before conditions worsen. YOUR AIR, AT A GLANCE - Today: your current status, what is driving it, outdoor context, and one concrete recommendation. - Rooms: every paired sensor side by side, with the room that needs attention first. - Air: outdoor conditions and forecasts, so you know what is outside before you act inside. - History: spikes, slow drift, and patterns across 24 hours, 7 days, or 30 days. - Alerts: meaningful changes only, not a stream of noise. SIX SENSORS. TWELVE SIGNALS. Follow CO₂, calculated IAQ, PM1.0, PM2.5, PM4.0, PM10, VOC and NOx indices, temperature, humidity, pressure, and ambient light. VOC and NOx are relative indices that show change over time; they do not identify individual chemicals. DESIGNED TO FIT YOUR HOME The Terrestream sensor is designed to live in view. Its attractive form and bright, colorful display make current conditions easy to interpret without opening the app. Simple setup and clear guidance take you from a changing reading to a useful response without having to become an air-quality expert. Pair sensors over Bluetooth, connect each one to Wi-Fi, name and organize rooms, adjust device controls, and choose which notifications reach your phone. Home Assistant and MQTT integrations let connected-home users include Terrestream in compatible routines and dashboards. Core recommendations, recent history, and standard notifications come with the sensor—no subscription required. PRIVACY FIRST Your data is encrypted, and it is never sold or shared with third parties. Location access is optional and, when enabled, is used to show outdoor conditions for your area. WHAT YOU NEED A compatible Terrestream sensor and a Terrestream account are required to see indoor readings. Connected features need internet access and a 2.4 GHz Wi-Fi network; Bluetooth is used during setup. Outdoor information, including smoke, comes from third-party data sources rather than from the sensor, and it varies by location, availability, and freshness. Terrestream is informational. It is not a medical or life-safety device, and it is not a smoke, fire, carbon monoxide, radon, or gas-leak detector. Keep your required alarms, and do not rely on Terrestream in an emergency.