Praxis/OpCube: Air Quality Monitor
- Sensor
- An Alphasense electrochemical sensor, or PID for VOCs, or NDIR for CO2
- Ultra-low noise circuit maximizes receptivity of electrochemical sensor
- Alphasense OPC-N3 particle counter, with approximate readings down to 40 microns.
- Sensirion temperature and relative humidity sensor.
- Refined data correction through joint tenancy with government reference equipment.
- Variable sampling rates with frequencies up to two seconds.
- Communications
- 4G mobile communications for real-time data delivery to the cloud.
- GPS/GLONASS receiver.
- Platform
- Runs Debian Linux operating system for robust operation and ease of integration with other sensor systems.
- CPU SAMA5D27.
- Real-time clock with battery backup. Time synchronization via GPS receiver, network time protocol or real-time clock, depending on availability.
- Data Infrastructure
- Data sensor messages, control messages, and data storage using Amazon Web Services (AWS) or the customer's own infrastructure.
- Data storage on local microSD.
- General
- Wide DC power input from 7 to 24 Volts, rechargeable Lithium Iron Phosphate (LiFePO4) battery backup (> 1 hour of operation).
- Environmental range -40 to +50 C.
- Measurements 154 x 154 x 130 mm.
- Weight 2 kg.