WisNode Sense Home LoRa IAQ Sensor

The RAK7204 EU868 is a LoRaWAN air quality monitoring system from RAK Wireless. The highly accurate BME680 sensor from Bosch measures temperature, humidity, air pressure and IAQ (Indoor Air Quality ohmic raw data value). The measurements are then transmitted via LoRaWAN. Thanks to smart design, less than 15µA is consumed in standby mode and the measurement cycle intervals can be adjusted by the user. As a result, the system can run for approx. 2 years with the accompanying battery.

Info: The IAQ value is not transmitted, only the ohmic value. The IAQ needs to be calculated separately or a custom firmware created.

Features: 

• Extensive measurements like temperature, humidity, air pressure and indoor air quality (IAQ) 
  
• Precise BME680 sensor from Bosch 
  
• Fully compatible with LoRaWAN 1.0.2 
  
• Very low power consumption of less than <15µA in standby 
  
• Easy adjustment of the measurement interval via USB with the RAK Serial Port Tool 
  
• Replaceable 3500mAh lithium battery with a lifespan of 2 years (15 minutes data transmission interval) 
  
• Well documented and easy to integrate into a LoRaWan network

Documentation: 

• RAK Wireless Wiki
• RAK Wireless Forum

Technical Details:

• Manufacturer: RAK Wireless 
• Type: RAK7204 
• Manufacturer SKU: 205004 
• LoRa Band: EU868 
  
• Measured parameters: Humidity, humidity, air pressure and IAQ 
  
• Operating temperature: -40°C to 85°C 
  
• Power consumption:
  
• Standby: <15µA 
• Measurement: <10mA 
• LoRa transmission: <150mA 
• Temperature sensor: 
• Temperature range: -40°C to 85°C 
  
• Temperature tolerance: 0.5°C 
  
• Temperature resolution: 0.01°C 
  
• Humidity sensor: 
  
• Humidity range: 0% r.H - 100% r.H 
  
• Humidity tolerance: 3% r.H 
  
• Humidity resolution: 0.008% r.H 
  
• Pressure sensor: 
  
• Pressure range: 300hPa - 1100hPa
  
• Pressure tolerance: 0.6hPa 
  
• Pressure resolution: 0.18hPa 
• Battery voltage: 3.6V 
  
• Battery capacity: 3500mAh 
  
• Dimensions: 84x90x34mm 
  
• Weight: 187g 

Package includes: 

• 1x WisNode Sense Home LoRa IAQ Sensor