The MoreSense MS-07 indoor air quality monitor, built on the Sensirion SEN66 multisensor and powered by an ESP32-S3 microcontroller, boasts a 3.5-inch capacitive IPS touchscreen for data visualization and control. The MS-07 is an upgrade from the MS-06, enhancing CO₂, temperature, and humidity measurements by replacing the Sensirion SCD40 with the more advanced SEN66 sensor, which adds functionality for PM1.0, PM2.5, PM4.0, PM10, nitrogen oxides (NOx), and volatile organic compounds (VOCs). This model emphasizes local operation and privacy, with support for Home Assistant, Domoticz via MQTT autodiscovery, and Homey through the HomeyDuino app integration. Typically used in homes and offices, it tracks air quality and pollution metrics in real-time.
MoreSense MS-07 specifications include:
– Microcontroller: ESP32-S3 SoC, dual-core XTensa LX7 @ up to 240 MHz, 512KB SRAM, integrated 2.4GHz Wi-Fi, and BLE
– Storage: 512 MB microSD card for data and audio file storage
– Display: 3.5-inch capacitive IPS touchscreen at 480×320 resolution
– Audio: Built-in speaker for playback and alarms
– USB: USB Type-C port for power and programming
– Sensor: Sensirion SEN66
– Temperature: -10°C to +60°C (±0.45°C accuracy)
– Humidity: 0% to 100% RH (±4.5% accuracy)
– Particulate Matter: PM1.0 & PM2.5 (0-1,000 µg/m³, ±5 µg/m³ accuracy) and PM4.0 & PM10 (0-1,000 µg/m³, ±25 µg/m³ accuracy)
– CO₂: 400 to 5,000 ppm (±40 ppm + 5% reading accuracy)
– NOx Index: 1-500
– VOC Index: 1-500
– Miscellaneous: Battery and reset buttons, main power toggle switch, desktop or wall mount, 3D printed housing
– Power Supply: 5V via USB Type-C, Internal Panasonic NCR18650BD 3180 mAh rechargeable battery (10 hours operation)
– Dimensions: ~105 × 96 × 35 mm (with stand)
The Sensirion SEN66 multisensor offers Automatic Self-Calibration (ASC) and internal temperature compensation, ensuring consistent readings despite potential heating from the battery charging circuitry. The device’s microSD card logs data every 10 minutes, accommodating up to a year and 30 days before auto-pruning.
The ESP32-S3 firmware includes a web server for live monitoring and historical data analysis, supporting MQTT and MQTT(S) with TLS, plus a REST API for integration with Home Assistant, Domoticz, and Homey. Users can set custom thresholds to trigger commands or play audio alerts. It features a 3180 mAh battery enabling approximately 10 hours of operation, with an adjustable Eco-mode for low-power usage. Documentation is available in a PDF user manual.
The MoreSense MS-07, priced around $199.00, is available on Tindie and Lectronz, shipping from the Netherlands. It comes with a 2-meter USB-A-to-USB-C cable, a one-year warranty, and a “no good, money back” guarantee.