Size and Weight

  • Height: 80 mm (3.14 inches)
  • Width: 96 mm (3.77 inches)
  • Depth: 44 mm (1.73 inches)
  • Weight:
    • With Belt/pocket clip 164 gr (5.78 ounces)
    • With Belt strap 185 gr (6.52 ounces)

Environmental Variables

  • Temperature (ºC)
  • Relative humidity (%)
  • Gases:
    • Nitric Oxide or Carbon Monoxide (ppb) [σ 10 ppb]
    • Ozone (ppb) [σ 15 ppb]
    • Nitric Dioxide (ppb) [σ 15 ppb]

Capacity

  • EPROM capacity: 1 MByte
  • Stores more than 25,000 measures
    • The sampling frequency is set to 10s

Connectivity

  • Bluetooth 2.1
  • Micro USB (charge and data access)

Power and Battery

  • Battery: 3.7V LiPo 950mAh
  • Integrated intelligent battery charger with battery protection: Overcharge, Overcurrent, Overdischarge
  • Charging time: 3 to 4 hours @ 450mA (nominal) using USB connection
  • Operating time from fully charged battery: 20 to 40 hours (depending on Bluetooth use and sampling frequency)
    • The smartphone's battery depends on the model of the phone and use.
  • Cycle life: 60% capacity after 500 charge/discharge cycles

Visual Indicators

  • Battery LED:
    • Red: charging
    • Green: fully charged
  • Measuring LED:
    • Yellow LED: Acquiring
  • Bluetooth LED:
    • Blinking every 10 seconds: waiting for bluetooth pairing
    • Blinking continuously: transmiting data

Environmental Requirements

  • Operating Temperature Range: -10 to 45 °C
  • Operating Relative Humidity: up to 95 % noncondensing

System

  • Hardware reset and shutdown buttons: internal push buttons accessible through small hole in the box.
  • Firmware update: possible through USB connector using special application

In the box

  • Little Environmental Observatory
  • Micro USB cable
  • 5VDC 1A International USB charger
  • Reset/Suspend tool

LEOs and the Environment

Ateknea takes a complete product life cycle approach to determining our environmental impact.

The LEOs are portable sensor packs. It measures NO, NO2 and O3 using electrochemical sensors. It also provides the current temperature and relative humidity