Presents

LEO

The Little Environmental Observatories (LEOs) are portable sensor packs. It measures up to three pollutants including NO2, NO, O3, CO, SO2 or H2S using electrochemical sensors. It also provides the current temperature and relative humidity.

The LEO nodes can measure up to 9 air pollutants as well as ambient noise level and other environmental parameters.

_ MEASURE

The static nodes are composed of electrochemical (up to 3) sensors to measure (ppb or ug/m3):

  • NO2
  • NO
  • CO
  • O3
  • SO2
  • H2S

Other ambient quality indicators are also measures such as:

  • Temperature (ºC)
  • Relative Humidity (%RH)

_ FEATURES

  • Battery: 3.7V LiPo 900mAh
  • Integrated intelligent battery charger with battery protection:
    Overcharge, Overcurrent, Overdischarge
  • Charging time: 2 to 3 hours @ 700mA (nominal) using normal
    USB connection (cable provided)
  • Operating time from fully charged battery up to 60 hours
  • The smartphone’s battery depends on the model of the phone
    and use.
  • Cycle life: 60% capacity after 500 charge/discharge cycles

_ CONNECTIVITY

  • Bluetooth 4.0
  • Micro USB (charger only)

_ SIZE & WEIGHT

Height:

81 mm (3.18 inches)

Width:

38.5 mm (1.52 inches)

Depth:

39.4 mm (1.55 inches)

Weight:

104 g