Hygrion

Hygrion-BLE is the companion app for Hygrion humidity control devices, connecting directly over Bluetooth Low Energy — no account, no login, and no internet connection required. See what your device is doing right now — temperature, humidity, and whether it's actively dehumidifying or humidifying — then set a target humidity and let it maintain that level automatically. FEATURES Live Monitoring See real-time temperature and humidity readings, updated every 10 seconds, plus at-a-glance status for power, active membranes, digital outputs, and temperature alerts. Automatic Humidity Control Set your target humidity and hysteresis, and the device keeps your space at that level without further input. Fine-tune timer rate and temperature alert thresholds to match your setup. System & Sensor Configuration Toggle system power, swap dehumidify/humidify membrane assignments, control digital outputs, adjust LED brightness, and configure the installed humidity sensor and its heater. Data Logging & History Download logged temperature, humidity, and status data straight from the device, export it as a CSV file, and visualize trends with interactive, zoomable charts. Wireless Firmware Updates Update your device's firmware over Bluetooth — no cable or computer needed. Your settings are preserved through the update. Secure Pairing Protect your device with a 6-digit BLE passkey for secure, private pairing. Works Offline Everything happens over a direct Bluetooth connection between your iPhone and your device. No account, no cloud, no data collection. Hygrion-BLE requires a compatible Hygrion humidity control device.