H21-USB Hobo Micro Weather Station

•  Temperature
  2m cable
  6m cable
  17m cable

• Relative Humidity
  2m cable
  8m cable

• Wind Speed & Direction
  NOTE: Wind Speed & Wind Direction also available as seperate sensors.

•  Pulse Input
  (Energy/Flow Meters)

•  Rainfall

•  Barometric Pressure
  10cm Cable (for inside logger housing)
  50cm cable (for outside logger housing)

• Wind Speed
• Wind Direction

•  Solar Radiation
• Photosynthetic Light (PAR)

•  Soil Moisture
  10HS Probe

Smart Sensor Network Cable Length

100 m (328 ft) maximum

Logging Interval

1 second to 18 hours

Start Modes

Immediate, at interval, push button, or delayed start

Memory Modes

Stop when full or wrap when full

Memory

512 KB nonvolatile flash data storage

Time Accuracy

0 to 2 seconds for the first data point and ±5 seconds per week at 25°C (77°F)

Battery Type

 Four AA 1.5 V alkaline batteries for operating conditions of -20° to 50°C (-4° to 122°F); four AA 1.5 V lithium batteries for operating conditions of -40 to 70°C (-40 to 158°F)

Battery Life

1 year, typical use (up to five sensors with 1 minute or greater logging interval)

Communication Type

USB 2.0 interface

Full Memory Download Time

4 minutes

Enclosure Access

Hinged door secured by one latch with eyelet for use with user-supplied padlock

Materials

Outer enclosure: Polycarbonate/PBT blend with stainless steel hinge pins; Gaskets: Silicone rubber; Cable channel: EPDM rubber

Dimensions

17.04 x 11.94 x 4.47 cm (6.71 x 4.70 x 1.76 in.) see diagrams in manual
Padlock hole diameter: 0.58 cm (0.23 in.)

Weight

414g (14.6 oz.)

Environmental Rating

Weatherproof enclosure, NEMA 4X and IP66